首页> 外国专利> NEGATIVE-ELECTRODE MATERIAL FOR LI-ION SECONDARY CELL, METHOD FOR MANUFACTURING THE SAME, LI-ION-SECONDARY-CELL NEGATIVE ELECTRODE, AND LI-ION SECONDARY CELL

NEGATIVE-ELECTRODE MATERIAL FOR LI-ION SECONDARY CELL, METHOD FOR MANUFACTURING THE SAME, LI-ION-SECONDARY-CELL NEGATIVE ELECTRODE, AND LI-ION SECONDARY CELL

机译：锂离子二次电池用负极材料，其制造方法，锂离子二次电池用负极和锂离子二次电池

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摘要

The present invention provides a Li-ion secondary cell negative-electrode material with which it is possible to adequately suppress reductive decomposition of a liquid electrolyte by an active material during charging, the Li-ion secondary cell negative-electrode material exhibiting a high discharge capacity that exceeds the theoretical capacity of graphite and exceptional initial charging efficiency and cycle characteristics. In this negative-electrode material for a Li-ion secondary cell, the surfaces of particles of SiO x (O ‰¤ x 2) contain Li and at least one metallic element M selected from among Si, Al, Ti, and Zr, and have a coating of a Li-containing oxide comprising a composition in which M/Li 5 with respect to the molar ratio.

机译：本发明提供一种锂离子二次电池负极材料，利用该锂离子二次电池负极材料，可以充分抑制充电时的活性物质对液体电解质的还原分解，并且该锂离子二次电池负极材料显示出高的放电容量。超过了石墨的理论容量以及出色的初始充电效率和循环特性。在该锂离子二次电池用负极材料中，SiO x（O‰¤x <2）的粒子的表面含有Li和选自Si，Al，Ti和Zr中的至少一种金属元素M，并具有含Li氧化物的涂层，该涂层包含相对于摩尔比M / Li＞ 5的组合物。

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公开/公告号EP3410517B1

专利类型
公开/公告日2020-11-04

原文格式PDF
申请/专利权人 JFE CHEMICAL CORPORATION;
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申请/专利号EP20170741217
发明设计人 TAHARATOMOYUKI;
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申请日2017-01-06
分类号H01M4/36;H01M4/38;H01M4/48;H01M4/62;H01M4/04;H01M4/131;H01M4/134;H01M4/1391;H01M4/1395;H01M4/02;H01M10/0525;
国家 EP
入库时间 2022-08-21 11:39:18

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