公开(公告)号：KR100878718B1

公开(公告)日：2009-01-14

申请号：KR1020070086699

申请日：2007-08-28

Applicant: 한국과학기술연구원

Inventor： 김형선 ,  조병원 ,  정경윤 ,  이중기 ,  강택관 ,  정영환

IPC: H01M4/02 ,  H01M4/36 ,  H01M10/02

CPC classification number: H01M10/052 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/583

Abstract: A silicon thin film anode for a lithium secondary battery is provided to control the volume change generated in charging/discharging effectively, to prevent the delamination phenomenon from a current collector, to improve capacity and cycle property due to excellent electric conductance and adhesion. A silicon thin film anode(1) for a lithium secondary battery comprises current collector(10), anode active material layer(20) and carbon coating layer(40). The current collector comprises metal. The anode active material layer comprises a silicon and is formed on a current collector. The carbon coating layer covers the anode active material layer and does not react with electrolyte.

Abstract translation: 提供用于锂二次电池的硅薄膜阳极，以有效地控制充电/放电中产生的体积变化，以防止集电器的分层现象，由于优异的导电性和粘合性而提高容量和循环性能。 一种用于锂二次电池的硅薄膜阳极（1）包括集电器（10），负极活性材料层（20）和碳涂层（40）。 集电器包括金属。 负极活性物质层包含硅并形成在集电体上。 碳涂层覆盖阳极活性物质层，不与电解质反应。