公开(公告)号：KR1020130065371A

公开(公告)日：2013-06-19

申请号：KR1020110132207

申请日：2011-12-09

Applicant: 서울대학교산학협력단

Inventor： 오승모 ,  류지헌 ,  권지윤 ,  구준환 ,  채오병 ,  박건호 ,  황홍서

IPC: H01M10/0525 ,  H01M4/62 ,  H01M4/64

CPC classification number: H01M10/4235 ,  H01M4/13 ,  H01M4/134 ,  H01M4/38 ,  H01M4/48 ,  H01M10/0525 ,  Y02E60/122

Abstract: PURPOSE: A secondary battery is provided to additionally introduce a safety improver into a negative electrode, thereby improving safety of a battery at overcharging when internal temperature of the battery is increased at high temperature exposure. CONSTITUTION: A lithium ion secondary battery comprises a negative electrode. The negative electrode comprises a negative electrode layer including a negative electrode active material and a current collector. The negative electrode layer additionally includes alloy represented by chemical formula 1: M_aN_b or /and metal oxides represented by chemical formula 2: Toc. In the chemical formula 1, M is a metal which is not reactable with lithium ions, N is a metal which is reactable with lithium ions, 0

Abstract translation: 目的：提供二次电池，以将安全性改进剂另外引入负极，从而在高温暴露时电池的内部温度升高时，提高电池的过充电的安全性。 构成：锂离子二次电池包括负极。 负极包括负极层，其包含负极活性物质和集电体。 负极层还包括由化学式1表示的合金：M_aN_b或/和由化学式2表示的金属氧化物：Toc。 在化学式1中，M是不能与锂离子反应的金属，N是与锂离子反应的金属，0