Title:
二次電池用負極の製造方法
Document Type and Number:
Japanese Patent JP5676173
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a negative electrode with a multilayer structure, capable of materializing high battery capacitance while maintaining high charge and discharge efficiency and satisfactory cycle characteristics in a lithium secondary battery, and to provide a simple method of manufacturing the negative electrode.SOLUTION: A first active material layer 2a having a carbon material as a main component, and a second layer 3a to which metal based active material particles are bound by a binder are laminated on a copper foil 1a serving as a collector. The second layer 3a is formed by dispersing at least one or more among particles of a metal selected from a group of Si, Ge, Sn, In and Pb, alloy particles, and metal oxide particles in a solution obtained by dissolving the binder in a solvent, applying the coating liquid, and drying it.
Inventors:
宇津木 功二
山本 博規
入山 次郎
森 満博
三浦 環
坂内 裕
宮地 麻里子
山崎 伊紀子
山本 博規
入山 次郎
森 満博
三浦 環
坂内 裕
宮地 麻里子
山崎 伊紀子
Application Number:
JP2010179060A
Publication Date:
February 25, 2015
Filing Date:
August 09, 2010
Export Citation:
Assignee:
日本電気株式会社
International Classes:
H01M4/13; H01M4/133; H01M4/134; H01M4/139; H01M4/1393; H01M4/1395; H01M4/38; H01M4/48; H01M4/62; H01M10/052; H01M10/0566
Attorney, Agent or Firm:
Shinji Hayami