在做鋰(li)電池的(de)(de)(de)近幾年,隨著鋰(li)電的(de)(de)(de)應用場景(jing)越來越多元化(hua),防(fang)水的(de)(de)(de)、防(fang)爆(bao)的(de)(de)(de)、高溫(wen)的(de)(de)(de)、低溫(wen)的(de)(de)(de)、太空用的(de)(de)(de)等(deng)等(deng)要求,鋰(li)電的(de)(de)(de)專家(jia)們也(ye)在積極的(de)(de)(de)實(shi)驗(yan)突破,目前高溫(wen)鋰(li)電池如(ru)下(xia)做個初步(bu)介紹(shao);
2、電(dian)池廠家未有高(gao)(gao)(gao)溫(wen)(wen)電(dian)池生(sheng)產(chan)能力,電(dian)池正(zheng)極(ji)活性材料(liao)需(xu)要采(cai)用高(gao)(gao)(gao)溫(wen)(wen)鈷酸鋰的(de)正(zheng)極(ji)材料(liao),電(dian)池的(de)電(dian)解(jie)質需(xu)要采(cai)用高(gao)(gao)(gao)溫(wen)(wen)電(dian)解(jie)質,電(dian)池隔(ge)膜需(xu)要采(cai)用耐高(gao)(gao)(gao)溫(wen)(wen)的(de)陶瓷隔(ge)膜,以及生(sheng)產(chan)工藝及配(pei)方需(xu)要通過大量的(de)實驗總結出來的(de)配(pei)方;
測試標準:電(dian)(dian)(dian)(dian)池(chi)滿電(dian)(dian)(dian)(dian)置(zhi)于恒溫(wen)箱(xiang)中,溫(wen)度調試到80℃,待箱(xiang)體中溫(wen)度達到80℃將電(dian)(dian)(dian)(dian)池(chi)置(zhi)于恒溫(wen)箱(xiang)中4小時,開始(shi)0.2C電(dian)(dian)(dian)(dian)流開始(shi)放(fang)電(dian)(dian)(dian)(dian),待電(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)放(fang)完,電(dian)(dian)(dian)(dian)池(chi)無(wu)明(ming)顯(xian)氣脹;待冷卻后,將電(dian)(dian)(dian)(dian)池(chi)充滿電(dian)(dian)(dian)(dian),放(fang)完電(dian)(dian)(dian)(dian),電(dian)(dian)(dian)(dian)池(chi)放(fang)電(dian)(dian)(dian)(dian)容(rong)量(liang)及時間無(wu)明(ming)顯(xian)下降(jiang),外觀無(wu)損壞(huai),證明(ming)電(dian)(dian)(dian)(dian)池(chi)高溫(wen)性能(neng)合格,如出現(xian)氣脹或者壽命衰減(jian)代表電(dian)(dian)(dian)(dian)池(chi)高溫(wen)性能(neng)不通過。
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