Title:
正極材料及びその製造方法並びに蓄電素子
Document Type and Number:
Japanese Patent JP5654820
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a nonaqueous lithium type electricity-storage device which provides a high output and has a high withstand voltage.SOLUTION: The anode material for a nonaqueous lithium type electricity-storage device is composed of a composite material having a core and a shell covering the surface of the core. The core material for forming the core is a carbonaceous material. The shell material for forming the shell satisfies the following requirement (1): in a three-pole cell having a nonaqueous electrolytic solution prepared by dissolving LiPF, with a concentration of 1M/L, in a solvent consisting of a mixture of ethylene carbonate and methyl ethyl carbonate whose mass ratio is 4:1, an action electrode made of the shell material, and counter and reference electrodes made of lithium metal, the oxidative decomposition potential of the solvent on the action electrode is equal to or higher than 4.2 V(vsLi/Li) at 25°C.
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Inventors:
岡田 宣宏
Application Number:
JP2010217071A
Publication Date:
January 14, 2015
Filing Date:
September 28, 2010
Export Citation:
Assignee:
旭化成株式会社
International Classes:
H01G11/24; H01M4/36; B82Y99/00; H01G11/06; H01G11/22; H01G11/26; H01G11/30; H01G11/32; H01G11/42; H01G11/46; H01G11/50; H01G11/54; H01G11/60; H01M4/583; H01M10/052; H01M10/0569
Attorney, Agent or Firm:
Aoki 篤
Ishida 敬
Tetsuji Koga
Kazuhiro Nakamura
Hiroyuki Onoda
Saito 都子
Ishida 敬
Tetsuji Koga
Kazuhiro Nakamura
Hiroyuki Onoda
Saito 都子