Hpa Majaw Hpe Hkap Jak Ai Lam?
Customer gaw 1C kaw charge galaw mai ai kun ngu san ai spec sheet hte dan dawng wa ai. Nang dang di ai. Raitim 1C gaw ceiling re, hpaji jaw ai lam n re. Masha law law gaw ndai garan ginhka ai lam hpe n lu la ai, shing nrai shanhte lu la ai raitim hpa n sawn ai. Battery n si shi yang, marai langai ngai gaw hpa byin mat ai hpe tsun dan ra ai.
Ya aten na current gaw battery kata de wan n-gun hpe kade daram lawan ai hku shadut ai lam re. Amperes. Amp ni hpe sha yu yang akyu n nga ai, 100A kaw na capacity. 100Ah battery hte matut mahkai lam hpe mu ra ai, 1C, theoretically hku nna hkying hkum mi laman hta full full. 50A hta 0.5C, hkying hkum lahkawng. 18650 ning hta 2600mAh ngu masat da ai cell langai, 0.5C ngu ai lachyum gaw 1.3A. C{14}}rate gaw, n bung ai sized battery ni hpe maren mara n bung ai hku shingdaw na matu, industry madang hku nna galaw ai.
Lithium battery law malawng gaw 0.5C hta shani shagu lang na matu kaja ai. Anhte gaw forklift battery ni hpe 1C charge galaw nna sat kau ai pack law law hpe mu lu hkra aten galu galaw nga ga ai. 1C n mai galaw ai, aten kadun laman hta kaja ai ngu n tsun ai, raitim, mali tsa, manga tsa daram na ai hpang, shai hkat ai lam pru wa ai. 0.5C packs ni gaw naw n-gun ja ai, 1C ni gaw hkrat sum mat sai. Nang ra sharawng ai chemistry hpe tsun dan mai ai, masha ni gaw shanhte a sanghpaw li kaw na data ni hpe n mu shi yang n kam ai.
Hpa majaw dai zawn byin nga ai kun? Lithium ions ni gaw charge galaw ai shaloi anode ntsa na graphite layers ni hpe intercate galaw ra ai. Ya aten hta grai tsaw ai, ions ni gaw shang na matu lawan ai hku line up n mai galaw ai, shanhte gaw dai a malai metallic lithium hku nna npu de shinggrup da ma ai. Metallic lithium gaw dendrites hku nna kaba wa ai, garan ginhka ai, kata na short short, thermal hprawng ai lam hku nna hkai ai. Battery factory mabyin ni gaw shata loi mi na ai hpang shiga hpe shabyin ya ai. Multiple gaw law malawng byin shangun ai, raitim, charge hte seng ai lam ni gaw, galaw shapraw ai ni hkap la ai hta grau nna, npawt nhpang a npawt nhpang hpe sawk sagawn ai hta grau nna dan dawng wa ai.
Lithium battery charge galaw ai shaloi, daw masum nga ai.
Business kaw na masha shagu gaw ndai lam hpe chye ai raitim, yawng gaw dai masum hpe n myit mada ai.
Pre{0}}charge
3V lawu na Voltage, n-gun hpring ai hte n mai hkra ai. Anode material structure gaw deep discharge ngut ai hpang n grin mat ai majaw, n mai gram lajang lu ai hkra machyi lam ni hpe byin shangun ai. Pre{3}}}charge stage gaw 10% daram lang ai current hpe lang nna, voltage hpe loi loi hte bai nhtang wa shangun ai. Lama na 0.05C gaw threshold ntsa kaw na voltage bai hkam kaja wa ai aten du hkra rai na re. Manu n hkrat ai charger law law gaw ndai hpe tsep kawp lai kau sai. Battery gaw katsi ai aten tup n-gun n rawng ai sutdek langai mi hta dung nga ai, 2-point de voltage hkrat wa ai-sut, spring du wa nna, marai langai ngai gaw dai hpe hka leng hpring hpring hte plug bang da ai. Shata kru na ai hpang manghkang ni pru wa ai. Ndai hkrang hpe shaning shagu dingdung maga na customers ni kaw na anhte mu lu ai. Ga shaga ai lam langai sha, mahtai langai sha.
Galoi mung ya na
Ya aten na n-gun ja ai n-gun hpe n-gun ja ai hku n-gun dat ai. Ya aten hta voltage lung nga ai aten hta sha nga ai, 0.5C gaw hkying hkum lahkawng npu hta 80% daram de du lu ai. Ndai shara kaw n-gun law malawng shang wa ai, ndai daw hpe tsun dan na matu grai n law ai, nang myit mada da ai hte maren bungli galaw ai.
Galoi mung Voltage
Constant voltage stage gaw masha ni skip galaw mayu ai hpe ra sharawng ai. Voltage gaw NMC zawn re ai ternary chemistries ni a matu cell langai hta ceiling-4.2V hpe hkra ai hpang, LFP-current a matu 3.65V gaw shi hkrai shi taper galaw ra ai. Voltage gaw 0.01C grup yin hta cell hpring tup wa ai shaloi, n-gun n rawng ai, ya aten na hkrat sum ai lam ni hpe hkam la lu ai. Dai 2600mAh 18650 a matu 26mA daram jahtum kaw nga ai. Ndai stage gaw hkying hkum mi daram aten la ra ai. Nang gaw ahkying hpe yu nna, npu kaw forklift hpe bai ra ai shaloi, ndai daw hpe shayawm kau ai. Result gaw 10-15% n-gun n-rawng ai (sh) nang gaw cathode hpe grau nna n-gun jaw na matu shakut nga ai hpe stress galaw nga ai.
Temperature lam
Temperature gaw galai shai ai lam ni re. Cold electrolyte gaw viscous re, ions ni gaw n kaja ai. 0.5C hte maren sha nta kata na nbung katsi ai shara hta bungli galaw ai gaw, hka lim ai npu hta lithium hpe n-gun jaw ya lu ai. Cold storage hte refrigerated warehouse application ni hta battery ni ra ai.Caring current hpe n hkap la shi yang, cell ni hpe n yawm htum 5℃du hkra katsi shangun ai. Customers ni myit ai gaw, battery ni aten dep si mat ai aten du hkra, heating n ra ai manu re. Dai shaloi shanhte hpe hpa majaw n sadi jaw ai ngu san ai. Shanhte hpe anhte sadi jaw ga ai. Speci hte ka da ai laika hta, bungli galaw ai nbung laru n-gun hpe hpa majaw tsun da ai.
LFP gaw ternary hta grau nna n kaja ai lam hpe hparan ya ai, ya aten hta hpa majaw arung arai ni hpe hparan ai lam hta uphkang nga ai. Nkau cell ni gaw 15C charge galaw na matu masat da ai. Dai hpe galaw ra ai ngu ai lachyum n re. Anhte gaw shingdaw ai lam ni hpe galaw ai, 1C vs 0.5C aten galu charge galaw ai, lahkawng ning bung ai cycling. Capacity shai hkat ai lam gaw 8-12% rai nna, nbung katsi ai hpe kade daram hkang lu ai hta hkan nna rai nga ai. Hkrit hpa n re ai sha, dai gaw nang sanghpaw li galai ai manu hpe yu ai shaloi, gumhpraw teng sha rai nga ai.
bungli galaw ai hta n hkru ai
Kaga langai mi gaw, n-gun n yawm ai sha, charger matching re. 200Ah a matu galaw da ai 0.5C charger gaw 100A hpe shapraw ai. 100Ah galai ai battery hta galai nna, kalang ta nang gaw 1C kaw du nna, nang myit da ai raitim, n galaw ai raitim. Arung arai ni hpe gram lajang ai hte battery galai ai aten hta aten shagu lawm ai. Dai charger gaw pack nnan a matu naw htap htuk ai kun ngu kadai mung n jep yu ai. Battery gaw n galaw ai aten du hkra kaja hkra galaw ai.
Forklift battery hpaga lam hta ga si langai mi nga ai, battery manu gaw mawdaw kaba ting a 30% re. OSHA gaw charge galaw ai shara ni a matu laksan tara ni nga ai, 1910.178, hydrogen nbung hpe shapraw na matu ra ai lam ni, myi man kashin ai shara ni, acid hka lim ai lam ni hpe hparan na matu ra kadawn ai lam ni nga ai. Lead-}}mung prat ni gaw, charge galaw ai shaloi hydrogen gas jat ai majaw, ra sharawng ai lam ni rai nga ai. Lithium prat gaw hydrogen manghkang gaw n nga mat sai raitim, thermal runaway risk gaw galai shai mat ai. Hkrit tsang hpa n bung ai majaw, myit maju jung ra ai.
Current hpe charge galaw ai gaw spec sheet kaw na nambat langai sha re. Hpang kaw na gaw na a battery kade daram na hkra nga ai hte lama ma n kaja ai lam byin wa na kun ngu ai hpe tsun ai. Manghkang ni pru wa ai hpang battery ni hpe galai ai hta manu n hkrat ai, arung arai ni hpe masat da ai shaloi, lata la ai lam hpe hkrak lu la u.
