磷酸锰铁锂复合三元体系及对复合方式的研究

Authors
Publication date
20 November 2019
Publisher

Abstract

将LiMn_(0.75)Fe_(0.25)PO_4与LiNi_(0.6)Co_(0.2)Mn_(0.2)O_2以常规搅拌方式制成复合正极,搭配常规人造石墨及陶瓷隔膜,所组装的电池表现出与三元电池相似的电压平台和能量密度,更优的低温性能(-20℃低温放电容量相当于常温容量的74.5%)以及更长的循环寿命(常温循环寿命为3 672次@86.7%),并且能够通过针刺安全测试。而先将LiMn_(0.75)Fe_(0.25)PO_4包覆在LiNi_(0.6)Co_(0.2)Mn_(0.2)O_2上,再正常合浆的正极,对比常规搅拌方式得到的正极在针刺安全性方面略有优势

    Similar works

    Full text

    thumbnail-image

    Available Versions

    Institutional Repository of Ningbo Institute of Material Technology & Engineering, CAS

    redirect
    oaioai:ir.nimte.ac.cn/:174433/176...
    Last time updated on 27/12/2019