LiTPO4 gaw lithium battery ni hta hpa rai ta??
Lithium Iron Phosphate arung arai ni hpe hpaw tsun dan ai
Lithium iron phosphate (molecular formula LiFePO°, lithium iron phosphate, LFP, lithium iron phosphate (sh) hka lim ai lithium phosphate ngu nna mung shamying ai) gaw lithium-ion battery ni hta lang ai cathode arung arai langai mi rai nga ai. Shi a arawn alai ni gaw, cobalt (sh) nickel zawn re ai manu dan ai lam ni n lawm ai, raw material manu gaw n law ai; hte carbon, lithium, hte magri ni gaw mungkan a npawt nhpang hta law law nga ai, dai gaw shaning shagu ton wan mi jan a gat lawk ra kadawn ai lam hpe hkap la lu ai. Cathode a arai langai hku nna, lithium iron phosphate gaw bungli galaw ai n-gun (3.2 V), n-gun kaba ai (170 mA·h/g), hka lim ai n-gun kaba, lawan ai hku charge galaw lu ai atsam, hte galu kaba ai shingjawng ai lam ni hpe hkam la lu ai, n-gun kaba ai{5}}}}}hkawm tsaw ai makau grup yin ni hta ngang grin ai lam kaja nga ai.
Lithium iron phosphate crystal gaw olivine hkrang langai hta lawm ai. Miralogy hta, Greek ga si npawt nhpang hkrun lam hte lylon kaw na pru wa ai triphylite ngu shamying ma ai. Lagaw ni hta, nsam gaw nsam hpraw ai, hpraw nsam, hpraw nsam, nsam hpraw, nsam hpraw ai, tengman ai arung arai ni gaw nsam hpraw (sh) nsam hpraw ai-nblack rai nga ai. Shingra tara nkau mi hta lithium iron phosphate lawm ai raitim, grade gaw n law ai hte tatut jai lang ai madang de n du lu ai. Lithium iron phosphate gaw composite phosphate hpan hta lawm ai, shi a general chemical formula gaw LiMPO pri rai ra ai, dai shara hta M gaw n bung ai nhprang rai ni rai mai ai, dai hta Fe, Co, Mn, Ti, etc. arung arai. Raitim, olivine hkrang hte seng ai compound ni a matu, lithium iron phosphate gaw lithium-}ion hta cathode arung arai hku nna lang mai ai n re. Ya aten na machye machyang hte maren, LiMnPO%, LiMnFOPO€, LiVPO%, hte kaga arung arai law law nga ai.
Lithium iron phosphate arung arai ni a npawt nhpang hpe 1996 ning kaw nna sawk sagawn mai ai, Japan mungdan na telecommunication company NTT gaw AMPO% (A gaw alkali metal, M gaw Co (sh) Fe) hpe olivine structure lawm ai hpe shawng nnan mu tam ai shaloi, LiFeCoPO°C hpe hpaw nna, lithium-}ion battery cathode material hpe kayau kaya lang mai ai. Dai hpang, dai hpe Amerikan mungdan na Massachusetts Institute of Technology kaw na Goodenough sawk sagawn hpung kaw nna mu tam la lu ai, dai aten hta, hkrang masa hpe hkaja ai shaloi, lithium iron phosphate arung arai ni gaw lithium-ion (Li⁺) ni a lapran na matut mahkai lam hte n-gun n rawng ai lam ni hpe bai gram lajang lu ai atsam nga ai. 1997 ning April shata 23 ya shani hta, Austin kaw na Texas Dakkasu kaw nna, "Pothed arung arai ni hpe bai gram lajang mai ai lithium lahkawng lang lang na matu" ngu ai patent langai mi hpe tang madun da ai (WO1997010541), lithium iron phosphate arung arai ni a ntsa patent langai sha lu ai ni a npawt nhpang hpe masat da ai.
Amerikan hte Japan ni a olivine-structured phosphate hpe kalang ta shapraw ai gaw, grai myit lawm ai lam hpe lu la nna, grai law hkra sawk sagawn ai lam ni hpe shabyin ya ai, hpaga lam hpe lawan ladan rawt jat wa shangun ai. Htunghking hku nna lithium{{2}ion lahta na lahkawng lang ngu na battery a n-gun n-gun n-gun-spelium n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun (LiMn₂Oqua) hte layered{5}}structured lithium cobalt oxide (LiCoO₂){6}}} LiMPO°) hte shingdaw yu yang, grup yin hpe n-gun n rawng ai sha, n-gun n rawng ai arung arai ni grau law nna, manu n hkrat ai arung arai ni nga ai. Grau nna, shimlam gaw grai rawt jat wa sai, sawk sagawn ai ni hte hpaga lam ni kaw na myit lawm ai lam kaba hpe shabyin ya ai.
Lai wa sai shaning ni hta sawk sagawn ai lam ni hta, lithium iron phosphate arung arai ni gaw, hka htung a-crystallized olivine hkrang hpe madu da ai, shi a lithium-}ion garan ginhka ai lam ni gaw, htunghking hku galaw ai cathode arung arai ni hte n bung ai. Htunghking hku nna cathode arung arai ni gaw layered (sh) spinel structure ni nga ai, lithium ions ni gaw layers lapran (sh) grau kaba ai channel ni hta lawan ai hku shamu shamawt lu ai majaw, dai arung arai ni hpe n-gun kaja ai hku galaw lu ai. Dai hte nhtan shai ai hku nna, lithium iron iron phosphate arung arai ni hta lithium{{4}ion garan ginhka ai lam ni gaw langai mi-dmensional langai mi rai nga ai, lachyum gaw lithium-ion a matu "tunnel" langai sha nga ai, dai majaw lithium{7}}ion htawt sit ai lam gaw grai lawan ai hte diffusion tsan ai shara gaw kadun ai. Grau nna, n-gun kaba ai{9}}rate hka pru ai masa ni a npu hta, kata na lithium ions ni gaw aten hta n mai htawt sit ai majaw, grai ahkyak ai electrochemical polarization byin wa ai.
Lahta na dawdan lam ni hpe jep sagawn na matu, san seng ai lithium iron phosphate arung arai ni hpe lang nna battery ni hpe galaw mai ai. Chyam dinglik ai lam ni hta, san seng ai lithium iron phosphate arung arai ni hpe n-gun dat jai lang ai lam gaw grai n law ai, battery gaw cycle jawn ai shaloi lawan ai hku n-gun yawm wa ai hpe hkam sha lu ai. Hkrang 2.1 hta, laika ka ai wa galaw ai lithium-ion gumhpraw cell langai a cycle galaw ai lam hpe, hka n-gun rawng ai lithium iron phosphate ( carbon n lawm ai sha) lang nna galaw ai cycling galaw ai lam hpe madun da ai. 15 daram charge–discharge cycle ngut ai hpang, battery n-gun gaw 20% jan hkrat sum mat sai hpe mu lu ai. Dai majaw, san seng ai lithium iron phosphate arung arai ni gaw lithium-ion battery system ni a matu n htap htuk ai.
2000 ning hta, Hydro-Québec (H{2}}Q), Canada mungdan a mung shawa akyu ara gaw, lithium iron phosphate hta carbon coating hpe lang ai lam ni lawm ai, n-gun rawng ai arung arai ni hte coating lithium iron phosphate ntsa kaw patent ni hpe shawng nnan bang ai wa re. Ndai lam gaw lithium iron phosphate hpe n-gun kaba ai hku lu la nna, shi a cycle prat hpe 2000 ning jan de jat ya lu ai. Ndai lam gaw, lithium iron phosphate hpe cathode arung arai langai hku nna, hpaga lam galaw hpang wa ai hpe madi madun ai.
