Kodi batire yotentha yotsika ndi chiyani? Ubwino ndi ntchito za mabatire a lithiamu otsika kutentha

Anzanu ambiri adzakhala ndi mafunso akamva zomwe mabatire akutsika: Kodi batire yocheperako ndi chiyani? Kodi pali ntchito?

Kodi batire yocheperako ndi chiyani?

Batire yocheperako ndi batire yapadera yomwe imapangidwa makamaka chifukwa cha kuwonongeka kwa kutentha komwe kumachitika pakugwiritsa ntchito mphamvu zamagetsi. The batire yotsika kutentha amagwiritsa VGCF ndi adamulowetsa mpweya ndi malo enieni pamwamba (2000±500)㎡/zowonjezera zamafuta, ndipo zimagwirizana ndi zida zabwino komanso zoyipa zama elekitirodi. Ma electrolyte apadera okhala ndi zowonjezera zapadera amabayidwa kuti awonetsetse kuti ntchito yotulutsa kutentha kwa batire yotsika. Panthawi imodzimodziyo, kutentha kwakukulu Kutentha kwa voliyumu ya 24h pa 70 ℃ ndi ≦0.5%, yomwe ili ndi ntchito zotetezera ndi zosungirako za mabatire a lithiamu wamba.

Mabatire otsika kwambiri amatanthawuza mabatire a lithiamu-ion omwe kutentha kwawo kumakhala pansi -40 ° C. Amagwiritsidwa ntchito makamaka muzamlengalenga zankhondo, zida zokwera pamagalimoto, kafukufuku wasayansi ndi kupulumutsa, kulumikizana kwamphamvu, chitetezo cha anthu, zamagetsi zamankhwala, njanji, zombo, maloboti, ndi zina. Mabatire a lithiamu otsika amagawidwa molingana ndi momwe amachitira: kusungirako mphamvu, mabatire a lithiamu otsika, ndi mabatire a lithiamu otsika. Malinga ndi magawo ogwiritsira ntchito, mabatire a lithiamu otsika amagawidwa kukhala mabatire a lithiamu otsika kwambiri kuti agwiritse ntchito pankhondo komanso mabatire a lithiamu otsika kwambiri m'mafakitale. Malo omwe amagwiritsira ntchito amagawidwa m'magulu atatu: mabatire osatentha kwambiri a anthu wamba, mabatire apadera osatentha kwambiri, ndi mabatire osatentha kwambiri.

Malo ogwiritsira ntchito mabatire otsika kwambiri amaphatikizapo zida zankhondo, zakuthambo, zida zamagalimoto zonyamula mizinga, kafukufuku wasayansi wa polar, kupulumutsa kozizira, kulumikizana kwamagetsi, chitetezo cha anthu, zamagetsi zamankhwala, njanji, zombo, maloboti, ndi magawo ena.

Ubwino ndi ntchito za mabatire a lithiamu otsika kutentha

Mabatire a lithiamu otsika kutentha ali ndi ubwino wopepuka, mphamvu yeniyeni yeniyeni, ndi moyo wautali ndipo amagwiritsidwa ntchito kwambiri pazida zosiyanasiyana zamagetsi. Pakati pawo, otsika kutentha polima lithiamu-ion batire alinso ubwino ma CD yosavuta, zosavuta kusintha mawonekedwe a geometric mkuntho, kopitilira muyeso-kuwala ndi kopitilira muyeso-woonda, ndi chitetezo mkulu. Zakhala gwero lamphamvu lazinthu zambiri zamagetsi zamagetsi.

Sichitha kugwiritsa ntchito mabatire wamba wamba pa -20 ° C, ndipo imatha kugwiritsabe ntchito mabatire a lithiamu otsika, nthawi zambiri pa -50 ° C. Pakali pano, mabatire osatentha kwambiri amagwiritsidwa ntchito m'malo a ℃ kapena pansi. Kuphatikiza pa zida zamagetsi zolumikizirana, zida zamagetsi zam'manja zankhondo, zida zamagetsi zamagetsi, ndi zida zazing'ono zamagalimoto zamagetsi zimafunikiranso kugwiritsa ntchito mabatire osatentha kwambiri. Magetsi amenewa amakhalanso ndi zofunikira zochepetsera kutentha akamagwira ntchito m'munda.

Mapulojekiti ofufuza malo monga maulendo amlengalenga ndi pulogalamu yolowera mwezi yomwe ikugwiritsidwa ntchito ku China imafunanso mphamvu zosungiramo mphamvu zosungiramo mphamvu, makamaka mabatire a lithiamu otsika kutentha. Chifukwa zida zoyankhulirana zankhondo zimakhala ndi zofunika kwambiri pamakhalidwe a batri, makamaka zomwe zimafuna zitsimikizo zolumikizirana pamatenthedwe otsika. Choncho, kukula kwa mabatire a lithiamu otsika kutentha ndikofunika kwambiri pa chitukuko cha mafakitale ankhondo ndi zamlengalenga.

Mabatire a lithiamu otsika kwambiri amagwiritsidwa ntchito kwambiri chifukwa cha kupepuka kwawo, mphamvu zenizeni zenizeni, komanso moyo wautali. Mabatire a lithiamu otsika kwambiri amapangidwa ndi zida zapadera ndi njira zake ndipo ndi oyenera kugwiritsidwa ntchito m'malo ozizira apansi pa zero.

Akatswiri pa yunivesite ya California, San Diego, bwinobwino anayamba otsika kutentha lithiamu chitsulo mankwala lifiyamu-ion batire mphamvu kuti akhoza kukhalabe ntchito kutentha firiji pa kutentha otsika opanda 60 ° C. Pakali pano, mitundu ya mabatire otsika omwe amatha kuyika pamsika makamaka amaphatikizapo mabatire a lithiamu iron phosphate ndi ma polima otsika kutentha kwa lithiamu. Mitundu iwiriyi ya matekinoloje a batri otsika kutentha ndi okhwima.

Features wa otsika kutentha lithiamu iron phosphate batire

• Kuchita bwino kwambiri kwa kutentha kochepa: kutulutsa pa 0.5C pa -40 ℃, mphamvu yotulutsa imaposa 60% ya chiwerengero choyamba; pa -35 ℃, kuphulika pa 0.3C, mphamvu yotulutsa imaposa 70% ya chiwerengero choyamba;
• Lonse ntchito kutentha osiyanasiyana, -40 ℃ kuti 55 ℃;
• Kutentha kwapansi lithiamu iron phosphate batire ali ndi 0.2c discharge cycle test curve pa -20°C. Pambuyo pa kuzungulira kwa 300, pamakhalabe mphamvu yosungira mphamvu yoposa 93%.
• Itha kutulutsa mapindikidwe otuluka a mabatire otsika a lithiamu iron phosphate pa kutentha kosiyana -40 ° C mpaka 55 ° C.

Battery yotsika ya lithiamu iron phosphate ndi teknoloji yatsopano yopangidwa pambuyo pa kufufuza kwa nthawi yaitali ndi chitukuko ndi kuyesa. Zopangira zogwira ntchito kwambiri zimawonjezeredwa ku electrolyte. Zida zabwino kwambiri zopangira ndi ukadaulo zimatsimikizira kuti batire imatuluka bwino kwambiri pakatentha kocheperako. Izi otsika kutentha lifiyamu chitsulo mankwala batire chimagwiritsidwa ntchito m'madera otsika kutentha monga zida zankhondo, makampani Azamlengalenga, zida zosambira, polar kafukufuku sayansi, kulankhulana mphamvu, chitetezo cha anthu, zamagetsi zachipatala, etc.