Title:
リチウムイオン二次電池用負極、その製造方法、およびそれを用いたリチウムイオン二次電池
Document Type and Number:
Japanese Patent JP4824394
Kind Code:
B2
Abstract:
A negative electrode for a lithium ion secondary battery including a current collector and an active material layer carried on the current collector, wherein the active material layer includes a first layer and a second layer alternately laminated in a thickness direction of the active material layer, and wherein the first layer includes silicon or silicon and a small amount of oxygen and the second layer includes silicon and a larger amount of oxygen than the first layer. With the use of the negative electrode, it is possible to provide a high capacity lithium ion secondary battery having excellent high rate charge/discharge characteristics and superior cycle characteristics.
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Inventors:
Yasutaka Koyuki
Kazuyoshi Honda
Toshitada Sato
Koji Yoshizawa
Kazuyoshi Honda
Toshitada Sato
Koji Yoshizawa
Application Number:
JP2005350294A
Publication Date:
November 30, 2011
Filing Date:
December 05, 2005
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01M4/134; C23C14/10; C23C14/34; H01M4/13; H01M4/131; H01M4/139; H01M4/1391; H01M4/1395; H01M4/38; H01M4/48; H01M4/485; H01M10/052; H01M10/0525; H01M10/0566; H01M10/36; H01M4/52; H01M4/525; H01M10/0587
Domestic Patent References:
| JP2006107912A | ||||
| JP2006164954A | ||||
| JP2003162997A |
Attorney, Agent or Firm:
Kazuo Ishii
Shinichi Kawasaki
Shinichi Kawasaki