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鋰離子電池極片輥壓方式有什么?哪個比較好?
鋰電池極(ji)片(pian)輥(gun)(gun)壓工藝中(zhong),輥(gun)(gun)壓溫度(du)是(shi)否對電(dian)(dian)池(chi)極(ji)片(pian)和(he)電(dian)(dian)池(chi)性能有(you)影響(xiang)?本次(ci)分(fen)(fen)(fen)享一份資料,摘取其中(zhong)部分(fen)(fen)(fen)說明鋰(li)電(dian)(dian)池(chi)極(ji)片(pian)輥(gun)(gun)壓溫度(du)的(de)(de)影響(xiang)。極(ji)片(pian)輥(gun)(gun)壓分(fen)(fen)(fen)為冷(leng)軋(ya)(ya)(ya)和(he)熱(re)軋(ya)(ya)(ya)兩種方(fang)式,目前國外已經廣(guang)泛(fan)采用熱(re)軋(ya)(ya)(ya)的(de)(de)方(fang)式進行極(ji)片(pian)軋(ya)(ya)(ya)制,而國內還是(shi)多采用冷(leng)軋(ya)(ya)(ya)的(de)(de)方(fang)式。與冷(leng)軋(ya)(ya)(ya)相比,熱(re)軋(ya)(ya)(ya)主(zhu)要有(you)以下(xia)優點:
我們采用LiFePO4作為正極材料,鋰片作為負極材料,制成扣式鋰離子電池,以面(mian)密度(du)(du)、壓(ya)實密度(du)(du)和厚(hou)度(du)(du)一致性三個(ge)參數(shu)為指標,考察(cha)了(le)正極片(pian)的軋(ya)制溫度(du)(du)對電(dian)(dian)池極片(pian)和電(dian)(dian)池電(dian)(dian)化學性能的影響(xiang)。