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Process of preparing active material for battery and active material for battery prepared therefrom 发明授权

2023-01-20 2200 790K 0

专利信息

申请日期 2025-07-11 申请号 US10408124
公开(公告)号 US7473493B2 公开(公告)日 2009-01-06
公开国别 US 申请人省市代码 全国
申请人 Jae Phil Cho; Yong Chul Park; Won Il Jung; Geun Bae Kim
简介 A process for preparing an active material for a battery includes the steps of preparing a coating liquid by adding a compound comprising an element X that is capable of forming a double bond with oxygen, and a compound comprising at least one from the group consisting of an alkali metal, an alkaline earth metal, a group 13 element, a group 14 element, a transition metal, and a rare-earth element, to water, adding a metal source to the coating liquid to surface-treat the metal source material, drying the surface-treated metal source material to prepare an active material precursor; mixing the active material precursor with a lithium source; and heat-treating the resultant mixture to produce an active material with a surface-treatment layer comprising the compound of the formula (1) : [in-line-formulae]MXOk  (1)[/in-line-formulae]wherein M is at least one selected from the group consisting of an alkali metal, an alkaline earth metal, a group 13 element, a group 14 element, a transition metal, and a rare-earth element; X is an element that can form a double bond with oxygen; and k is a numerical value in the range of 2 to 4.


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