Kuti mukwaniritse kuthamangitsa mwachangu kwambiri, batire, chonyamulira chofunikira kwambiri pakulipiritsa, iyeneranso kusinthidwa.Kuthamanga kwachangu kwa batri makamaka kumadalira kuthamangitsidwa ndi kutulutsa kukula kwa batri.Pali zifukwa zazikulu zitatu zomwe zimakhudzira kukula kwacharge: zinthu zama elekitirodi, mphamvu yolipirira mulu wacharging ndi kutentha kwa batri lamphamvu.Kwa mabizinesi a batri, mphamvu yolipirira milu yolipiritsa ndi cholinga, ndipo zida za electrode ndi kuwongolera kutentha ndi komwe mafakitale a batri amatha kusintha.
Mu ulalo wa batire yamphamvu, kutha kwa batire mwachangu kumatengera kuthekera kosiyanasiyana monga kuthekera kwa lifiyamu kuyika ma elekitirodi olakwika, mapindu a electrolyte, komanso mphamvu yowongolera matenthedwe a batire.
Mukalipira mwachangu, ma ion a lithiamu amayenera kuthamangitsidwa ndikulowetsedwa mu electrode yoyipa.Izi zimalepheretsa ma elekitirodi olakwika kuti alandire ma ion a lithiamu mwachangu.Ngati electrode yoyipa ilibe mphamvu yoyika lifiyamu yothamanga kwambiri, mpweya wa lithiamu kapena lithiamu dendrite zidzachitika, zomwe zingayambitse kuchepetsedwa kosasinthika kwa mphamvu ya batri ndikufupikitsa moyo wautumiki.Kuphatikiza apo, electrolyte imafunanso kuwongolera kwambiri ndipo imafuna kukana kutentha kwambiri, kuletsa moto komanso anti-overcharge.Kumbali ina, kulipiritsa kwamphamvu kwambiri kudzabweretsa kutentha kwakukulu, ndipo kasamalidwe ka matenthedwe a mapaketi a batire amphamvu kwambiri ndikofunikira.
Nthawi zambiri, pamapangidwe otetezeka a paketi ya batri, chitetezo cha kutentha kwamafuta chimatha kuchitidwa pogwiritsa ntchito zida zotchinjiriza zotentha zokhala ndi magwiridwe antchito apamwamba, monga mapaipi a ceramic insulation ndi ma mica board.Komabe, kuwonjezera pa chitetezo chokhazikika chamafuta, njira zodzitetezera kumafuta ndizofunikiranso.Pa Shanghai Auto Show, mabizinesi osiyanasiyana amagetsi amagetsi "adawonetsanso luso lawo" pakupanga zinthu zatsopano komanso kasamalidwe ka kutentha kwa phukusi lonse.
M'mbuyomu, ukadaulo wothamangitsa mwachangu kwambiri munthawi ya Ningde udaphimba ma netiweki amagetsi, mphete za ion, isotropic graphite, ma electrolyte apamwamba kwambiri, ma diaphragms apamwamba, ma elekitirodi amitundu yambiri, makutu ambiri, kuwunika kwa anode, ndi zina zambiri.
Ukadaulo wa anotropic umalola ma ayoni a lithiamu kuti alowetsedwe mu njira ya graphite madigiri 360 kuti apititse patsogolo kuthamanga kwa liwiro.Anode angathe kuwunika akhoza kusintha kulipiritsa panopa mu nthawi yeniyeni, kuti batire akhoza kukulitsa mphamvu kulipiritsa mu osiyanasiyana otetezeka popanda lithiamu kusanthula mbali zochita, ndi kukwaniritsa bwino pakati pa kulipiritsa liwiro kwambiri ndi chitetezo.Batire la Kirin la ternary limagwiritsa ntchito makina apamwamba a nickel cathode + silicon-based negative electrode system, yokhala ndi mphamvu zofikira 255Wh/kg, yomwe imathandizira mphindi 5 zoyambira mwachangu komanso 10min kuyitanitsa 80%.Komabe, panthawi yolipiritsa ndi kutulutsa, kuchuluka kwa silicon kumatha kufika 400%, ndipo zinthu zogwira ntchito zimakhala zosavuta kuzichotsa ku mbale ya polar, zomwe zimapangitsa kuti mphamvu ikhale yochepa kwambiri ndikupanga nembanemba ya SEI yosakhazikika.Choncho, zipangizo zamakono mu nthawi ya Ningde zimatenga ma nanotubes okhala ndi mipanda amodzi okhala ndi ma nanotubes 1.5 ~ 2, omwe amamangiriza pa silicon anode ndipo amakhala ndi maukonde oyendetsa bwino.Ngakhale silicon anode particles kukula voliyumu ndi kuyamba kuoneka ming'alu, iwo akhoza kukhalabe kugwirizana wabwino kudzera single-mipanda mpweya nanotubes.Kuphatikiza apo, electrolyte ya batri ya Kirin imatenga LiFSI ndipo imagwiritsa ntchito zowonjezera za FEC kupanga lithiamu fluoride pa electrode yoyipa.Radiyo ya ion ndi yaying'ono, yomwe imatha kukonza ming'alu pakapita nthawi.Pankhani ya kasamalidwe ka matenthedwe, Battery ya Kirin imaphatikiza makina ozizirira amadzimadzi ndi pad insulation pad kukhala sangweji yogwira ntchito zambiri pakati pa ma cell.Poyerekeza ndi pulani yachikhalidwe yoziziritsa zamadzimadzi yomwe imayikidwa pamwamba pa selo, malo otengera kutentha kwawirikiza kanayi.Chifukwa cha malo ozizirirapo okulirapo, mphamvu yowongolera kutentha kwa selo yawonjezeka ndi 50%.The ofukula kuzirala mbale amapanga yopingasa wachibale danga kudzipatula.Pali pepala yowonjezera yowonjezera + adiabatic airgel pakati pa maselo aatali, omwe amateteza bwino kutentha kuti akwaniritse "zero thermal runaway".
Nthawi yotumiza: Jun-26-2023