單位(wei)名(ming)稱: 咸陽通(tong)達輕工設(she)備有限公司
地址:陜(shan)西(xi)省咸(xian)陽市(shi)人民西(xi)路49號
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電話(hua):029-33617016
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實驗室抄片機鋰電池導電劑材料-石墨導電劑,作為鋰離子電池導電劑材料使用的主要有常規導電劑SUPER-P、KS-6、導電石墨、碳納米管、石墨烯、碳纖維VGCF等,我們來看一下石墨導電劑的應用情況。
導(dao)(dao)(dao)電(dian)(dian)碳黑(hei)的特(te)點是粒(li)徑小,比(bi)表(biao)面積(ji)特(te)別大,導(dao)(dao)(dao)電(dian)(dian)性能特(te)別好(hao),在(zai)電(dian)(dian)池中它可(ke)以起到吸液保液的作用。石(shi)墨導(dao)(dao)(dao)電(dian)(dian)劑基本為人造(zao)石(shi)墨,與負極(ji)材料人造(zao)石(shi)墨相比(bi),作為導(dao)(dao)(dao)電(dian)(dian)劑的人造(zao)石(shi)墨具有更(geng)小的顆粒(li)度(du),有利于極(ji)片顆粒(li)的壓實以及改善離子和電(dian)(dian)子電(dian)(dian)導(dao)(dao)(dao)率。
導(dao)電(dian)(dian)(dian)劑是保證電(dian)(dian)(dian)極(ji)具有良好的(de)(de)充放電(dian)(dian)(dian)性(xing)能,在極(ji)片制作時通常加(jia)入一定量的(de)(de)導(dao)電(dian)(dian)(dian)物質(zhi),在活性(xing)物質(zhi)之間(jian)、活性(xing)物質(zhi)與集流體之間(jian)起到收集微(wei)電(dian)(dian)(dian)流的(de)(de)作用,以減(jian)小電(dian)(dian)(dian)極(ji)的(de)(de)接觸(chu)電(dian)(dian)(dian)阻加(jia)速(su)電(dian)(dian)(dian)子的(de)(de)移動速(su)率,同時也能有效地提(ti)高鋰離子在電(dian)(dian)(dian)極(ji)材料中的(de)(de)遷(qian)移速(su)率,從而提(ti)高電(dian)(dian)(dian)極(ji)的(de)(de)充放電(dian)(dian)(dian)效率。