Overcharge ngu ai gaw hpa rai ta?

Battery langai mi gaw shi a n-gun hta jan nna wan n-gun hpe hkam la ai majaw, shim lum ai hku bungli galaw lu ai threshold hta jan nna wan n-gun hpe hkam la lu ai shaloi, overcharging byin pru wa ai. Lithium-ion battery ni a matu-dai ni na aten na electronic law malawng hpe electrode lapran na lithium ion ni hpe htawt sit ai hku nna n-gun jaw mai ai cell ni a matu-overcharge byin ai gaw, cell langai hta voltage 4.2V jan ai shaloi byin pru wa nna, nbung n-gun jat wa ai, chemical hten za mat ai, nbung n-gun hprawng mat wa chye ai.

Lithium ion battery ngu ai hpe chye na na matu, shi a npawt nhpang hkrang hte bungli galaw ai lam hpe yu ra ai. Lithium-ion battery ngu ai gaw, n-gun hpe bai gram lajang mai ai, n-gun hpe n-gun jat ya lu ai jak langai rai nna, wan n-gun hpe n-gun jat ya lu ai jak rai rai nna, wan n-gun hpe n-gun jat ya ai rai nna, wan n-gun hpe n-gun jat ya lu ai. Ndai battery ni gaw, dai ni na aten na electronic ni hpe uphkang nga ai, hpa majaw nga yang, shanhte gaw n-gun law law hpe kaji ai, n-gun n law ai package ni hta bang da nna, latsa lang lang recharge galaw ai hpe madi shadaw ya ai majaw re.

Madung daw ni gaw hkrak tup hkrak re ai ka manawt ai lam hta rau jawm galaw ai. Cathode hta laksan hku nna lithium cobalt oxide (sh) lithium magri phosphate zawn re ai lithium nlung oxide ni lawm ai. Anode hta graphite carbon n-gun ni lawm nna, shanhte a atom n-gun lapran hta lithium ion ni hpe hkam la lu ai. Separator membrane gaw ion ni hpe lai shangun ai sha n-ga, electrode lapran hkrak matut mahkai ai lam hpe pat shingdang ya ai. Electrolyte-galaw madang hku nna lithium sau gaw organic hka hta rawng ai-ion ni hpe n-gun jaw ai raitim electron ni hpe n-gun jaw ai.

Discharge galaw ai shaloi, lithium ions ni gaw anode kaw nna electrolyte hku nna cathode de lwi shang wa nna, electron ni gaw na a jak hpe n-gun jaw ai shinggan circuit hku nna hkawm sa wa ai. Charging galaw ai gaw ndai lam hpe nhtang wa shangun ai: shinggan na n-gun gaw ion ni hpe anode de bai nhtang wa shangun nna, shinggyin tawn da ai. Ndai nhtang wa mai ai lam gaw, atsam grai hkrat sum shi yang, wan hku law ai charge-discharge cycle ni hpe galaw lu shangun ai.

Ndai tsawm htap ai ladat gaw, hpa majaw lithium-ion hpaji masa gaw smartphone kaw nna wan jak mawdaw ni du hkra yawng hpe n-gun jaw ya ai lam hpe sang lang dan nga ai. Lithium a n-gun n law ai atom n-gun gaw n-gun kaba ai n-gun hpe jaw ya ai-madung hku nna 150-250 Wh/kg rai nna, lead-acid battery ni a matu gaw 30-50 Wh/kg rai nga ai. Cell langai hta 3.6-3.7V ngu ai nominal voltage gaw, jaw da ai voltage a matu ra ai cell n law ai majaw, n-gun hte yak hkak ai lam ni hpe shayawm ya lu ai.

Raitim, ndai lithium-ion battery ni hpe n-gun ja hkra galaw ya ai chemistry langai sha, grai n-gun ja hkra galaw ya ai.

Lithium-ion battery ni gaw, ya aten na jak law malawng hpe, nhtang wa mai ai tsi mawan ni hku nna, lithium ion ni hpe electrode lapran hta htawt sit ya ai hku nna, n-gun jaw ya nga ai. Battery langai mi hpe n-gun n rawng ai sha charge galaw ai shaloi, lithium ion ni gaw cathode kaw nna anode de sa nna, graphite structure kata de shang mat wa ai. Ndai ladat gaw n-gun hpe masat da ai voltage shadawn sharam kata hta shim lum ai hku shinggyin tawn da ai.

Overcharge galaw ai aten hta, jahten sharun ai ladat law law gaw bungli galaw wa ai. 4.2V hpe lai nna voltage lung wa ai gaw, graphite kata de hkrak hkrak n shang wa ai sha, anode ntsa kaw lithium plating-metallic lithium n-gun ni byin pru wa shangun ai. Ndai n-gun ni gaw, dendrites ngu ai needle- zawn re ai n-gun ni hpe shabyin ya nna, electrode lapran na separator membrane hpe htu shangun lu ai majaw, kata na short circuit ni byin pru wa ai.

2024 ning na sawk sagawn ai lam ni hta, nbung katsi ai shaloi, overcharging grau lawan wa ai hpe mu lu ai. -10℃hta, kata na ninghkap ai lam grai law wa ai majaw, charge galaw ai current ni hte pyi, voltage shadawn sharam hpe tawt lai na matu loi ai. Hpaji sawk sagawn ai lam langai hta, n-gun n law ai shara ni hta 0.2C hte 1C rate hta charge galaw ai battery ni hpe ka da ai, loi mi sha charge galaw ai shaloi, shata ni hta n-ga, bat mi laman hta kata na shorts hte current collector corrosion byin wa ai hpe mu lu ai.

Cathode gaw shi a hkrat sum ai lam hpe hkam sha nga ai. Lithium cobalt oxide zawn re ai cathode arung arai ni kaw na lithium hpe grai law hkra shaw la ai majaw, npawt nhpang n-gun yawm mat nna, electrolyte hpe lawan ladan hten za shangun ai oxygen hpe shapraw kau ya ai. Ndai cascade gaw katsi ai hte gas hpe shapraw ya nna, kata na pressure hpe sharawt ya ai. Pressure gaw 500 psi daram jan ai shaloi, battery casing kaw na nbung pru wa ai-kalang lang gaw bawm kapaw ai.

Overcharge hkrat sum ai shaloi, nbung katsi ai lam grai rawt jat wa ai. Laboratory chyam dinglik ai lam ni hta, nbung katsi ai aten hta, nbung katsi ai aten hta, nbung katsi ai lam gaw, nbung katsi ai shara (25-35℃) kaw nna, 780℃jan de lung wa ai hpe mu lu ai. Dai katsi ai lam gaw, n-gun kaba ai kaw na Joule katsi ai lam, electrolyte kata na exothermic side reactions ni, pru wa ai nbung ni hpe wan nat ai lam ni kaw na pru wa ai.

Overcharging

Battery engineer ni gaw, charge a tsa lam shadang hpe madung tawn nna, hkrat sum ai ladaw ni hpe garan ginhka chye ma ai.

Laksan 1 (100-120% SOC): Normal hku nna overcharge galaw hpang wa ai. Voltage gaw n-gun jat wa ai shaloi, current hpe hkang lu ai. Anode ntsa kaw SEI (solid electrolyte interphase) n-gun grau ja wa ai hte maren, kata na n-gun jat wa ai. Katsi ai lam gaw n-gun n rawng ai sha nga ai, n-gun rawng ai shara hta 5-10℃jan ai.

Laksan 2 (120-140% SOC): Lithium n-gun rawng ai hpe mu lu wa ai. Metallic lithium gaw anode ntsa kaw shinggyin hpawng nna, nbung hte nbung hpe shapraw ai n-gun atsam ni hku nna electrolyte hpe sha kau ya ai. Battery kata na pressure law wa ai hte maren loi mi n-gun yawm wa chye ai. Ndai ladaw laman na atsam shadawn ai lam ni hta, prat tup 10-15% sum ai lam hpe mu lu ai.

Laksan 3 (140-160% SOC): Dendrite rawt jat lam lawan wa ai. Needle- zawn re ai lithium nsam ni gaw electrode lapran na gap hpe shingdaw ya ai. Micro-shorts ni byin wa nna, shara shagu hta katsi ai lam byin shangun ai. Electrolyte oxidation hte cathode n-gun yawm mat ai majaw gas pru ai lam grai law wa ai. Battery a voltage gaw n tara ai hku byin mat ai.

Stage 4 (>160% SOC): Thermal hprawng hkawm ai hpe hpang wa ai. 130℃jan ai kata na nbung katsi ai majaw, separator hpe hka lim mat shangun ai. Hkum tsup ai kata na short circuit byin wa nna, mahkawng da ai n-gun hpe lawan ladan shapraw kau ya ai. Second loi mi laman, nbung katsi ai lam gaw℃latsa daram du hkra rawt jat wa chye ai. Casing gaw rupture byin nna, katsi ai gas ni hpe shapraw kau nna, wan hkru wa chye ai.

Ndai rawt jat lam gaw chemistry hku nna shai hkat ai. Lithium iron phosphate (LiFePO4) battery ni gaw grau ngang grin ai cathode hkrang ni a majaw, lithium cobalt oxide amyu myu hta grau nna charge galaw ai hpe hkam sharang lu ai. Raitim, lithium-ion chemistry yawng gaw, grai law hkra charge galaw ai shaloi, hkra machyi ai lam ni hpe hkrum sha chye ai.

Makawp maga ai lam n nga ai lithium-ion battery gaw grai sawng ai tsin-yam ni hpe shabyin ya lu ai. Battery Management Systems (BMS) gaw matut manoi yu reng ai hte shamu shamawt ai hku shang lawm ai hku nna, n-gun grai law ai masa ni hpe ninghkap na matu, madung makawp maga lam hku nna magam gun nga ai.

BMS gaw aten tengman ai hta ahkyak ai masa masum hpe hkan tam ai: cell a n-gun (millivolt hku shadawn ai), n-gun lwi ai (amperes hku shadawn ai), hte nbung katsi ai (battery pack ting hta shara law law hta shadawn ai). Dai ni na aten na masa ni gaw ndai manu ni hpe second mi hta kalang latsa lang sample galaw nna, hti ai lam ni hpe program galaw da ai shimlam thresholds ni hte shingdaw yu ai.

Gara cell mung 4.2V-lithium{2}}ion cell ni a matu n-gun kaba dik htum de du wa ai shaloi BMS gaw charge current hpe shi hkrai shi shayawm kau ya ai. Ndai tapering gaw charge galaw ai aten hpe galu shangun ai raitim, voltage grai law hkra n byin hkra pat shingdang ya ai. Current shayawm tim voltage matut nna rawt jat wa ai rai yang, circuit lam kaw MOSFET switch ni hpe hpaw nna charge hpe tsep kawp dawm kau ya ai.

Cell balancing gaw kaga makawp maga lam langai hpe jat ya ai. Battery pack kata na cell langai hkrai gaw, galaw shapraw ai lam kaji kajaw shai hkat ai hte jai lang ai ladat ni a majaw, charge a masa hpe bung ai hku n law htum tawn da lu ai. BMS gaw cell langai hpra hpe langai hkrai hku nna yu reng nna, kaga cell ni hpang hkrat nga ai aten hta, gara cell langai mi mung grai charge n byin hkra, charge hpe bai garan jaw ai. Passive balancing gaw n-gun grau law ai hpe resistor ni hku nna katsi ai hku nna shabra kau ya ai; active balancing gaw grau kaja hkra galaw lu na matu cell lapran n-gun hpe htawt sit ya ai.

Katsi ai hpe yu reng ai gaw katsi ai hpe hkang zing ai tara ni hpe shabyin ya ai. Lithium-ion battery law malawng hta katsi wa chye ai cell ni a maka kaw tawn da ai katsi ai hpe chye na lu ai sensor law law lawm ai. Charge galaw ai shaloi 45℃jan katsi ai shaloi, BMS gaw current hpe shayawm ya ai (sh) katsi ai system ni hpe galaw ya ai.℃jan rai yang, thermal n hprawng mat hkra charge galaw ai lam hpe tsep kawp jahkring kau ai.

Smart charger ni gaw BMS system ni hte matut mahkai ai lam ni hpe galaw ai. Charger gaw aten dep-battery a masa hpe hkam la nna, dai hte maren shi a pru wa ai voltage hte current hpe gram lajang ya ai. Ndai lahkawng-matut mahkai lam gaw charger settings ni battery a atsam hte nhtan shai ai masa ni hpe pat shingdang ya ai.

2024-2025 install galaw ai kaw na field data ni gaw, hkrak hkrak gram lajang da ai BMS unit ni gaw 0.3%-a lawu na hkrat sum ai lam hpe lu la ai hpe madun ai, dai gaw battery 1,000 hta hkrat sum ai lam 3 hta n law ai. Ndai gaw moi na lithium-ion battery ni hta grau nna rawt jat wa ai hpe madi madun ai, dai battery ni hpe hkrak jai lang ai shaloi wan 10 hta na 1 daram hkrat sum ai lam hpe hkam sha ai raitim, makawp maga lam n lu galaw ai shaloi grau law ai.

Battery ni grai charge byin ai shaloi hkum hkrang kumla ni pru wa ai, raitim, hkra machyi ai lam nkau mi gaw performance chyam yu ai aten du hkra n mu lu ai.

Swelling gaw dan dawng dik ai masat kumla hku nna rank nga ai. Overcharge galaw ai battery ni gaw, kata na gas n-gun gaw casing hpe hkra machyi shangun ai majaw, n-gun rawng ai lam ni byin pru wa ai. Lithium-ion hka htung cell ni gaw ndai hpe asan sha madun dan nna, shingnip zawn jat wa ai. Cylindrical cell ni gaw n dan dawng ai hku n-gun rawng ai lam hpe madun na re, raitim, atsawm sha shadawn yu yang, diameter jat wa ai hpe mu lu ai.

Charge galaw ai aten (sh) charge galaw ngut ai hpang grai katsi ai gaw manghkang ni hpe madun ai. Kaja wa bungli galaw ai battery gaw, charge galaw ai shaloi, 5-9℃F jan ai katsi ai lam nkau mi hpe shapraw ya ai-. Ndai hta grau nna nbung katsi ai hpe mu lu ai, grau nna charger hpe daw kau ai hpang minit law law na ai hpang battery hpe hkra na matu katsi ai zawn hkam sha yang, charge grai law ai (sh) kata lam hkra machyi ai hpe madun ai.

Capacity hkrat sum ai lam gaw loi loi hte dan dawng wa ai. Battery ni hpe grai law hkra charge galaw ai shaloi aten na wa ai shaloi charge n law ai hpe hkam la lu ai. Shawng de charge galaw ai lapran hkying hkum 8 daram lang ai device langai gaw, charge grai law hkra galaw ngut ai hpang hkying hkum 5-6 daram de hkrat sum mat chye ai. Battery hpe yu reng ai apps ni gaw, ya aten na atsam hte design atsam hpe shingdaw nna, ndai hkrat sum ai lam hpe hkan tam lu ai.

Voltage shadawn ai lam gaw ana jep chyoi ai shiga ni hpe jaw ya ai. Multimeter lang nna, jak hkying hkum law law hkring sa ngut ai hpang battery voltage hpe jep yu u (charge galaw ngut ai hpang kalang ta n re, hti ai lam ni n hkrak na re majaw). Standard lithium-ion-a matu cell langai hta 4.2V jan ai n-gun kaba ai hti ai lam ni hpe n-gun n-htum ai hku hti ai gaw, n-gun grai law ai hpe madi madun ai.

Grai sawng ai masa hta Leakage byin pru wa ai. Terminal grup yin hta hpraw ai powder ngam nga ai (sh) battery shingnip kaw na ntsin pru wa ai gaw electrolyte pru mat ai hpe madun ai. Ndai gaw hkrit tsang hpa rai nga ai; lithium battery a n-gun dat ni hta n hkru n kaja ai hte wan hkru chye ai n-gun dat ni lawm ai. Leak byin ai battery ni hpe n mai lang ai.

Odors ni gaw chemical hkrat sum na hpe sadi jaw ai. Battery kaw na sulfur- zawn re ai (sh) n-gun ja ai chemical manam pyaw ai gaw, grau nna charge galaw ai aten (sh) charge galaw ngut ai hpang, grai katsi ai majaw electrolyte hten za mat ai hpe tsun mayu ai. Ndai manam pyaw ai gaw grau sawng ai hkrat sum lam ni a shawng e byin chye ai.

Performance n bung ai gaw cell n rap ra ai hpe madun dan ai. Device langai mi gaw 30-40% charge ngam ai hpe madun tim n myit mada ai sha pat mat yang, battery pack kata na cell nkau mi gaw grai charge ai majaw hkra machyi nna nkau mi gaw capacity hpe n-gun n-htum hkra tawn da ai.

Overcharging

Makawp maga ladat ni gaw, jai lang ai electronic kaji kaw nna, n-gun kaba -hkum tsup ai du hkra, jai lang ai lam hte maren shai hkat nga ai.

Smartphone hte Laptop ni: Ya aten na jak ni hta, grai kungkyang ai power management hpe bang da ai majaw, hpaji masa hku nna teng sha overcharge galaw ai hpe pat shingdang lu ai. Charging circuit gaw 100% n-gun rawng ai aten hta n-gun rawng ai hpe jahkring kau ya ai. Raitim, jak ni hpe matut manoi plug bang tawn da ai gaw trickle charging cycles hpe shabyin ya ai-n-gun kaji ni gaw shingra tara hku byin pru wa ai discharge hpe bai jat bang ya ai majaw, micro-cycles ni hpe byin shangun ai. Hpaji masa hku nna grai charge n galaw tim, ndai gaw katsi ai hpe shabyin ya nna battery hpe stress jaw ya ai. Kaja dik ai ladat gaw, charge hpring tup ngut ai shaloi, plug hpe n-gun n rawng hkra galaw ai (sh) jai lang ai ladat hpe sharin la nna, ra ai aten du hkra charge hpring hkra galaw ai hpe jahkring kau ai, grau nnan ai jak nnan ni hta nga ai adaptive charging atsam ni hpe lang ai lam re.

Wan jak mawdaw ni: EV ni gaw, cell latsa daram hpe hkang lu ai, rawt jat galu kaba wa ai BMS system ni hpe lang ai. Ndai masa ni gaw makawp maga ai lam law law hpe jai lang ai: cell-madang hpe yu reng ai, ntsin hpe katsi shangun ai hku nna nbung hpe hkang ai, software-n-gun jaw ai charge shadawn sharam ni hpe jai lang ai. EV law law gaw madu ni hpe shani shagu lang na matu 100% n re ai sha, charge madang-80% (sh) 90% hpe masat da na ahkang jaw ai, hkrun lam galu hkawm na matu charge hpring tup hpe tawn da ai. Ndai gaw high voltage state kaw na stress hpe shayawm ya ai. DC lawan ai hku charge galaw ai hta grau nna, n law ai manu (Level 1 or Level 2) hte charge galaw ai gaw, nbung hpe grau kaja hkra hkang lu ai majaw, charge grai law hkra galaw na hpe mung shayawm ya lu ai.

Power arung arai ni hte myit lawm ai arung arai ni: RC mawdaw, drone, cord n lang ai arung arai ni hta lang ai Lithium polymer battery ni hpe atsawm sha yu reng ra ai. Battery a chemistry hte cell jahpan a matu laksan galaw da ai charger ni hpe lang u. Balance charge galaw ai shaloi cell yawng gaw voltage langai sha du hkra galaw ya ai. Ndai battery ni hpe charger ni hta aten galu n yu ai sha galoi mung hkum tawn da. Hkum tsup ai hku n-htum ai sha, cell langai hta 3.7-3.8V (40-50% daram charge) hta tawn da ai gaw aten galu hkrat sum ai lam hpe shayawm ya lu ai.

Bai gram lajang mai ai n-gun hpe mahkawng da ai: Solar panel kaw nna shani shagu cycle galaw ai nta na battery system ni hpe ngang kang ai BMS makawp maga lam hte charge controller hpe hkrak hkrak gram lajang ra ai. Charge hkang ai jak gaw battery chemistry hte maren rai ra ai. LiFePO4 battery ni a matu, ndai gaw 12V mying shamying ai ladat ni a matu 14.4-14.6V ngu ai lachyum rai nga ai. Float voltage hpe hkrak hkrak program galaw ai-LiFePO4 a matu 13.4-13.6V-galaw ai-battery n-gun du wa ai hpang matut manoi charge galaw ai hpe pat shingdang ya ai.

Marine hte RV jai lang ai lam ni: Lead-acid battery ni gaw labau hta ndai jai lang ai lam ni hpe uphkang nga ai raitim lithium-ion hpe jai lang ai lam gaw grau grau law wa nga ai. Lithium battery ni hpe lead-acid a matu galaw da ai system ni hta bai gram lajang ai shaloi, charge galaw ai ladat hpe bai gram lajang ra ai. Lead-acid charge galaw ai n-gun (14.8V (sh) dai hta jan ai) gaw lithium chemistry law malawng hpe grai charge galaw na re. Lithium-htap htuk ai charger (sh) converter hpe bang dat yang, hkra machyi ai lam hpe makawp maga ya lu ai.

Hpaga lam hte sutdek arung arai ni: Forklift hte kaga hpaga lam hte seng ai arung arai ni gaw, lawan ai hku charge galaw lu ai atsam hte cycle prat galu ai majaw, lithium-ion battery ni hpe grau grau lang wa sai. Ndai installation ni gaw, shana tup tup charge galaw ai hta, hkring sa ai aten hta ahkaw ahkang charge galaw ai kaw na akyu lu la ai. BMS gaw ndai jai lang ai ladat hpe madi shadaw ra ai, n hkum tsup ai charge cycle ni a majaw hkra machyi ai lam ni hpe n shinggyin la ai sha (sh) aten galu n bungli galaw ai aten hta charge grai law hkra n galaw ai hpe pat shingdang ra ai.

Temperature- hta hkan nna charge galaw ai gaw makawp maga ai ladat ni hpe grau kungkyang shangun ai. Lithium-ion battery ni gaw 0℃(32℃F) a lawu de n-gun n-jaw ging ai, hpa majaw nga yang, dai gaw n-gun n-gun n-gun n-rawng ai aten hta pyi n-gun n-gun jat wa shangun ai. Quality BMS system ni gaw ndai threshold npu na charge hpe pat kau ya nna, ya aten hta n-gun n jaw shi yang cell ni hpe katsi shangun lu ai.

Charger n kaja ai majaw battery hpe makawp maga da ai raitim, charge grai law hkra byin wa chye ai. Hten za ai lam ni hpe chye na ai gaw, hkra machyi ai lam n byin shi yang, hkrit tsang hpa masa ni hpe chye na lu na matu karum ya ai.

Voltage hpe hkang ai lam n kaja ai gaw charger manghkang ni hta grau nna lawm ai. Charger ni gaw n-gun hpe ngang grin hkra galaw na matu voltage hpe hkang ai jak ni hpe lang ma ai. Ndai daw ni hkrat sum mat ai shaloi-asak kaba wa ai majaw, katsi ai majaw, shing nrai, n-gun jat wa ai majaw-pru ai voltage gaw, masat da ai hta grau nna lung wa chye ai. 4.2V ngu ai charger gaw 5V (sh) dai hta jan ai, battery hpe makawp maga ai circuit ni hpe grai law hkra jaw ya lu ai.

Ya aten na tara masa lam ni gaw grau loi ai raitim maren sha hkra machyi shangun ai masa ni hpe shabyin ya nga ai. Battery ni charge hpring ai de du wa ai shaloi, current hpe shayawm na matu galaw da ai charger ni gaw kalang lang constant-current masa hta hkrat sum mat nna, voltage kaba ai shara ni hta pyi, amperage kaba dik htum hpe matut nna shadut nga ai. Dai gaw battery kata de grau law ai n-gun hpe shadut ya nna, katsi ai hte n-gun hpe shabyin ya ai.

Generic (sh) masu ai charger ni gaw grau nna hkrit tsang hpa byin shangun ai. Ndai arung arai ni hta, hkrak ai tara masa n nga ai, n kaja ai arung arai ni hpe lang ai (sh) hkrang shapraw ai lam hta n kaja ai lam ni nga chye ai. Hkamja lam hte seng ai uhpung ni a chyam dinglik ai lam hta, manu n hkrat ai charger ni gaw shim lum ai voltage hte ya aten na masat da ai lam ni hta grau ai hpe ayan mu lu ai. Battery hpe jahten kau ai (sh) wan hkru na hkrit tsang hpa byin shangun ai shaloi, gumhpraw hkoi ai gumhpraw ni hkoi mat ai.

N htap htuk ai charger ni gaw voltage hte current n htap htuk ai majaw battery ni hpe hkra machyi shangun ai. 3.7V jak hta 5V phone charger lang ai, shing nrai, lithium{4}}ion cell ni hta nickel-madung tawn da ai battery ni a matu galaw da ai charger lang ai gaw, manghkang byin wa na hpe kam mai ai. Charger a hkrang masa ni gaw battery ra ai lam ni hte bung ai hpe galoi mung jep yu u.

Charger ni hpe hka lim ai, hka lim ai, cable manghkang ni a majaw hkum hkrang hkra machyi ai gaw wan n-gun a arawn alai hpe galai shai kau ya lu ai. Frayed cables ni gaw charge galaw ai lailen hpe galai shai shangun ai resistance hpe shabyin ya ai. Hka hkra machyi ai majaw charger kata kaw short circuit byin wa nna, n hkang lu ai sha pru wa chye ai.

Product shimlam sawk sagawn ai kaw na jahpan ni gaw charger- hte seng ai mabyin masa ni a majaw lithium-ion battery 25% daram hkrat sum mat ai hpe mu lu ai. Charger hpe atsawm lata ai, hkra machyi ai lam ni hpe aten kadun laman jep yu ai, asak kaba sai unit ni hpe galai ai gaw, charge grai law hkra galaw na hpe grai shayawm ya lu ai.

Lithium-ion battery yawng gaw grai charge galaw ai shaloi maren sha n htang ai. Chemistry gaw hkam sharang ai madang hte hkrat sum ai lam ni hpe dawdan ya ai.

Lithium Kobalt Oksaid (LCO): Smartphone hte laptop ni hta law law lang lang ai LCO gaw n-gun grai law ai raitim, n-gun grai law hkra hkam sharang lu ai atsam n nga ai. Cathode gaw 4.2V jan hta grai n-gun n rawng mat nna, oxygen hpe shapraw kau nna, electrolyte hte grai n-gun ja ai hku n-gun rawng wa ai. LCO battery ni gaw voltage shadawn shadang hpe grai ngang kang hkra galaw ra ai hte BMS hpe ngang kang hkra makawp maga ra ai. 0.1V pyi overcharge galaw yang, hkrat sum ai lam hpe grai lawan shangun ai.

Lithium magri n-gun (LiFePO4): Hkamja lam a matu chye da ai LiFePO4 gaw, ngang grin ai magri phosphate cathode hkrang a majaw, kaga tsi mawan ni hta grau nna, n-gun grau ja ai hpe hparan lu ai. Voltage plateau gaw npu (cell langai hta 3.65V) hte n-gun n law ai majaw, overcharge byin na masa n law ai. Grai charge galaw ai shaloi pyi, LiFePO4 gaw nbung hte gas n law hkra shapraw ya ai. Raitim, bai nhtang charge galaw ai gaw, n-gun atsam hpe prat tup sum mat shangun nna, cycle prat hpe kadun shangun nga ai. Overcharging kaw na jat wa ai kata na ninghkap ai lam gaw aten na wa ai hte maren shinggyin la lu nna, hpang jahtum cell ni hpe n mai lang mat hkra galaw kau ya ai.

Lithium Nikel Mangan Kobalt Oksaid (NMC): Wan jak mawdaw ni hta law law lang ai, NMC gaw n-gun atsam hpe n-gun atsam hte n-gun atsam hpe rap ra hkra galaw ya ai. Maximum voltage gaw cell langai hta 4.2V du hkra rai chye ai. NMC gaw LCO hta grau kaja ai raitim LiFePO4 hta grau sawng ai kaji kajaw overcharge hpe hkam sharang lu ai. Overcharge galaw ai shaloi self-heating rate gaw LCO hta n law ai majaw, thermal runaway garai n byin shi yang, makawp maga ai ladat ni hpe bai htang na aten loi mi grau law hkra jaw ya ai.

Lithium Mangan Oksaid (LMO): Power tools hte tsi mawan ni hta LMO hpe lang ai gaw, shi a n-gun grai law ai hte n-gun n-gun n-rawng ai majaw re. Masum-dimensional spinel hkrang gaw lithium ion hpe grau lawan ai hku shamu shamawt shangun ai raitim, shingra tara masa hta pyi cycle prat hpe pat shingdang da ai. Overcharging gaw, ya nga sai-nga ai atsam hpe lawan ladan shayawm ya nna, 700 kaw nna 300-400 cycle de akyu rawng ai aten hpe shayawm ya ai.

Lithium Nikel Kobalt Aluminum Oksaid (NCA): Tesla hte kaga premium EV ni gaw laklai ai n-gun atsam a matu NCA hpe lang ai. Raitim, NCA gaw grai law hkra charge galaw ai shaloi, n-gun n rawng ai chemistries ni hta lawm nga ai. Nickel law ai majaw, cathode hpe voltage tsaw ai shara ni hta reactive byin shangun ai. Ndai chemistry gaw grai kungkyang ai nbung hpe hkang lu ai atsam hte hkrak tup ai wan n-gun hpe hkang lu ai atsam ra nga ai.

Kade nna ai aten hta sawk sagawn ai lam hta, battery ni gaw kalang lang n-gun n rawng ai sha, shadawn sharam hta jan nna charge galaw ai-chemistries yawng hta shinggyin la lu ai hkra machyi ai lam ni hpe mu lu ai. Kade nna yang overcharge byin ai lam ni pyi, n-gun n law ai hkrang galai shai lam ni hpe byin shangun ai: cathode particle ni htum mat ai, galai shai ai metal ni htum mat ai, anode ntsa na n-gun ni htum mat ai. Episode law law gaw ndai akyu ni hpe grau sawng shangun nna, kalang lang grai charge galaw ai battery ni gaw, jai lang ai ladat ni sha tau hkrau tsun da ai hta grau lawan ai hku hkrat sum mat ai hpe sang lang dan ai.

Overcharging

Katsi ai lam gaw, grai law hkra charge galaw na masa hte, byin wa na akyu ni a grai sawng ai lam lahkawng yan hpe grai hkra machyi shangun ai. Katsi ai hte katsi ai shara ni gaw n bung ai mayak mahkak ni hpe shabyin ya ai.

N-gun n law ai gaw, kata na n-gun grau ja ai hku nna, overcharging byin wa na masa hpe jat shangun ai. -10℃, hta, lithium-ion battery a n-gun gaw, nta kata na nbung katsi ai hte shingdaw yang, lahkawng lang (sh) masum lang jat wa chye ai. Ndai n-gun rawt jat wa ai majaw, current input langai sha a matu charge galaw ai shaloi voltage grau lawan rawt jat wa ai. Battery voltage hpe sha yu reng ai charger ni gaw, voltage kaba hpe charge hpring hkra du wa sai ngu lachyum shapraw mai ai, raitim ndai gaw charge a tengman ai masa hpe n yu ai sha, kata na ninghkap ai lam hpe madun dan ai. Matut nna charge galaw ai shaloi battery hpe grai charge galaw kau ai.

Katsi ai nbung laru gaw katsi ai shara hta grau nna n law ai overcharge madang hta lithium plating hpe mung n-gun jaw ya ai. Kaja wa nga yang lithium ion ni gaw anode de du nna graphite layer lapran de bang ra ai. Katsi ai nbung laru gaw ndai intercalation hpe shayawm ya ai. Ions ni gaw anode ntsa kaw shinggrup nna, magri n-gun ni byin pru wa ai. Ndai plating gaw nta kata na nbung katsi ai shara hta grai charge ngu sawn la ai voltage ni a lawu na voltage ni kaw nna hpang mai ai.

2024 ning kaw nna -10℃hta LFP cell ni hpe jep yu ai sawk sagawn ai lam ni hta 4.0-4.8V de grai charge galaw ai gaw lawan ai hku hkrat sum mat ai hpe mu lu ai. Charge cycle 50 lang sha galaw ngut ai hpang, 30-40% hkrat sum mat ai, nta kata na nbung katsi ai shara hta bungli galaw ai shaloi 5-10% sum mat ai. Thermal runaway gas ni a npu na bawm kapaw ai shadawn shadang (LEL) mung yawm mat wa ai, lachyum gaw bawm kapaw ai masa a matu ra ai gas n law ai.

Nbung katsi ai gaw nhtan shai ai manghkang hpe shabyin ya ai-shanhte gaw overcharge hpe mu tam ai hte thermal runaway lapran na aten hpe shayawm ya ai. Katsi ai gaw battery kata na chemical yawng hpe lawan shangun ai. Degree 40 hta grai charge galaw ai battery gaw minit loi mi laman thermal runaway de du wa chye nna,℃20 hta dai zawn sha charge galaw ai shaloi minit 30 ram aten la ra ai. Ndai kadun ai mahtai jaw ai window gaw makawp maga ai ladat ni a akyu hpe shayawm kau ya ai.

Ambient heat gaw, grai charge galaw ai majaw, kata kaw na pru wa ai katsi ai hpe jat ya nna, feedback loop hpe shabyin ya ai. Katsi ai mawdaw (60℃kata na katsi ai) hta battery charge galaw ai gaw, katsi ai shara kaw nna hpang wa ai. Overcharge galaw ai majaw, grau nna katsi ai hpe shabyin ya ai. Dai hpawng de ai lam gaw, nbung katsi ai lam hpe hkrit tsang hpa shara de grau lawan ai hku shadut ya ai.

Battery byin ai lam ni hta aten ladaw shai hkat ai lam gaw ndai nbung katsi ai lam hpe madun dan nga ai. Wan sat dap ni gaw, nbung laru aten hta lithium-ion battery wan hkru ai lam grau law ai hpe tsun dan ai, grai charge galaw ai hte grup yin nbung katsi ai majaw hkrit tsang hpa hpawng de ai lam ni byin pru wa ai. Dai hte maren, katsi ai battery ni hta kata na ninghkap ai lam ni hpe hkrum sha ai majaw, katsi ai aten hta charge- hte seng ai manghkang ni grau law wa ai.

Lithium{0}}ion battery ni a matu kaja dik htum charge galaw ai nbung katsi ai gaw 10-30℃lapran rai nga ai. Ndai ginra shinggan de, nbung katsi ai lam hpe gram lajang na matu charge rate ni hpe shayawm kau ra ai. Advanced BMS system ni hta battery a n-gun hpe madung tawn nna charge parameters ni hpe gram lajang ya ai n-gun hpe gram lajang ya ai n-gun hpe gram lajang ya ai algorithms ni hpe bang da ai majaw, n-gun hte seng nna grai law hkra charge galaw ai hpe pat shingdang ya lu ai.

"Overcharging" ngu ai ga si gaw, battery ni hta lai nna, sut masa hte tara masa lam ni de mung jat wa ai rai nna, dai hta manu grai law hkra hkanse bang ai (sh) n tara ai mara shagun ai lam ni hpe jat bang ai hpe tsun mayu ai.

Business galaw ai lam hta, overcharging ngu ai gaw myit hkrum da ai-upon (sh) manu dan ai hta jan nna gumhpraw jaw na matu hpyi shawn ai lachyum re. $3,500 ngu myit hkrum da ai bungli a matu $5,000 jaw ai contract galaw ai wa gaw, grai law hkra jaw ai. Dai hte maren, lusha seng ni mung, n-hkap la ai arung arai ni hpe bill hta jat bang ai (sh) yawng hpe shut ai hku sawn la ai gaw, manu grai law hkra jaw ai ngu ai re. Sut masa laika buk ni hta, shingjawng hkat ai gat lawk manu ni hte shingjawng hkat ai benchmark manu ni a lapran na manu shai hkat ai lam ngu nna, laksan hku nna tsun da ai.

Mungdaw law law hta, jai lang ai ni hpe makawp maga ai tara ni gaw, hpaga lam hta grai law hkra manu jahpu jaw ai lam hpe hparan ya ai. Business ni gaw, hkrang shapraw ai hku nna, gumhpraw law law jaw ai hpe mu lu ai majaw, tara jeyang hkrum na, gumhpraw bai wa na ra ai, hkalem hkalau ai majaw tara tawt lai ai mara ni nga wa chye ai. Dai n-gun gaw yaw shada ai lam hta madung nga ai-kalang lang gumhpraw jahpu shut ai lam ni gaw, gumhpraw law law hpe shaw la na matu myit da ai masing ni hta grau nna ari jaw ai lam n law ai.

Tara upadi masa ni hta, tara shawk shawn ai lam hta grau sawng ai mara shagun ai lam gaw sakse ni madi shadaw ai hta grau sawng ai mara shagun ai lam hpe tsun mayu ai. Tara kasa ni gaw, sakse ni gaw masha sat ai lam hpe sha tsun ai shaloi, second-degree sat ai lam hpe mara shagun mai ai, ngang kang ai mara raw ya ai lam hpe gawgap ai. Makawp maga tara kasa ni gaw, horizontal overcharging (n tara ai hku mara shagun ai lam ni hpe law law lang galaw ai) hte vertical overcharging (n htap htuk ai madang tsaw ai hku mara shagun ai) ngu ai hpe garan ginhka ma ai. Tara rung ni gaw ndai lailen hpe n-gun n jaw tim, probable cause standards ni gaw, grai law hkra manu jahpu jaw ai tara shawk shawn ai lam ni hpe dawm kau na matu yak hkak shangun ai.

Ndai -battery n re ai "overcharging" lang ai lam ni gaw battery grai law hkra charge galaw ai hte maren sha re ai gabaw hpe garan gachyan ai: gingdan ai shadawn sharam hpe lai di ai gaw manghkang ni hpe shabyin ya ai. Voltage grai law ai majaw battery ni hpe hkra machyi shangun ai zawn, hpaga lam (sh) tara upadi hta grai law hkra charge galaw ai gaw, n tara ai masa ni hpe shabyin ya nna, shang lawm ra ai.

Ya aten na smartphone ni hta-makawp maga lam ni hpe 100% charge galaw ai hpe jahkring kau ya ai, htunghking hku grai charge galaw ai hpe pat shingdang ya ai. Raitim, phone ni hpe matut manoi plug bang tawn da ai gaw, trickle charging cycle byin shangun nna, aten ladaw ni na wa ai hte maren, battery hpe katsi shangun nna, stress byin shangun ai. Ndai katsi ai gaw battery a prat hpe loi loi hte shayawm ya ai. Charge hpring ai shaloi (sh) adaptive charge galaw ai atsam ni hpe lang ai shaloi, battery hkam kaja lam hpe grau kaja hkra galaw ya ai.

Standard lithium-ion cell ni gaw cell langai hta 4.2V jan ai shaloi, n-gun grai law ai. 3-cell laptop battery a matu, 12.6V jan ai voltage ni gaw grai charge ai hpe madun ai lachyum re. Lithium magri phosphate (LiFePO4) battery ni hta npu na shadawn sharam nga ai, n law htum cell langai hta 3.65V nga ai. Voltage hpe jep yu ai shaloi, active charging (sh) discharge galaw ai shaloi voltage gaw aten kadun laman rawt jat wa ai majaw, hkrak ai hti ai lam ni hpe lu la na matu battery hpe hkying hkum law law hkring sa ra ai.

Hten za ai aten gaw, charge grai law ai hte battery chemistry hta madung nga ai. Grai sawng ai hku charge galaw ai majaw minit mi kaw nna hkying hkum mi laman thermal runaway byin wa chye ai. Chronic mild overcharging gaw bat ni kaw nna shata ni laman hta n-gun yawm mat ai, battery gaw 50-100 lang shingjawng ngut ai hpang 20-30% n-gun yawm mat ai hpe mu lu ai. Functional makawp maga ai ladat ni lawm ai battery ni gaw, n kaja ai hku n hkrat sum ai sha, loi loi hte bungli galaw ai lam hpe sum mat chye ai.

Overcharge galaw ai majaw, battery arung arai ni hpe prat tup hkra machyi shangun nna, n mai nhtang wa ai. Cathode n-gun ni htum mat nna, anode ni hta lithium plating naw ngam nga ai, electrolyte n-gun n-gun yawm mat ai gaw n mai nhtang wa ai. Matut nna overcharge galaw ai hpe jahkring kau ai gaw, grau nna hkra machyi ai lam hpe pat shingdang ya ai raitim, shawng de sum mat ai atsam hpe bai n mai gram lajang ai. Grai overcharge galaw ai battery ni hta n-gun rawng ai, hka lim ai, shing nrai, original a 60% npu na capacity nga ai hpe mu lu ai rai yang, gram lajang na matu shakut ai hta grau nna galai ra ai.

Battery hkam kaja lam hte shim lum lam gaw, charge galaw ai ladat hta madung nga ai. Smartphone hpe shana tup charge galaw ai raitim, wan jak mawdaw hpe hparan ai raitim, overcharge galaw ai ladat hpe chye na ai gaw, hkra machyi ai lam hpe koi gam ya lu ai. Makawp maga ai ladat ni grai kaja wa ai majaw, jak rung ni hkrak hkra galaw ai shaloi, tsin-yam tsindam byin ai lam n law ai. Charger hte battery ni hpe ayan jep yu ai, atsawm sha tawn da ai ladat ni, katsi ai masa hpe sadi maja ai gaw, battery ni hpe yaw shada da ai aten laman hta bungli galaw lu hkra galaw ya ai.

Battery chemistry a rawt jat galu kaba wa ai lam gaw grau shim lum ai tsi ladat ni hpe matut galaw nga ai. Ya aten hta galaw nga ai Solid-state battery ni gaw, wan hkru chye ai ntsin electrolyte ni hpe ngang grin ai n-gun ja ai arung arai ni hte galai shai nna, n-gun grai ja ai hpe ninghkap lu ai atsam hpe ga sadi jaw da ai. Ndai hpaji masa ni kungkyang wa ai aten du hkra, ya nga ai makawp maga ladat ni gaw, chye da ai lang ai ni a lailen ni hte hpawn, shani shagu lang ai wan hku law ai lithium-ion battery ni a matu kam mai ai shimlam hpe jaw ya nga ai.