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Title:
ALL SOLID LITHIUM SECONDARY BATTERY AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2009054484
Kind Code:
A
Abstract:

To provide an all solid lithium secondary battery having excellent charge and discharge output characteristics by using an electrode active material inexpensive and easy to utilize as a negative active material of the all solid lithium secondary battery, and also to provide the manufacturing method of the all solid lithium secondary battery efficiently manufacturing the battery.

The secondary battery 1 has a laminate 2 formed by laminating a composite layer 45 formed by integrating a negative electrode 4 and an electrolyte layer 5, and a positive electrode 3. The electrolyte layer 5 is composed of a solid electrolyte layer 51 comprising a lithium ion conductor. The negative electrode 4 is composed of a negative current collector 41 made of a net material and a negative active material layer 42 formed on the negative current collector 41. The negative active material layer 42 is composed of a metal material containing at least one kind selected from the group comprising Sn, Bi and Sb. The positive electrode 3 has a positive current collector 31 made of a net material and an electrode material 32 press-formed to cover the positive current collector 31.


Inventors:
KONDO SHIGEO
TAKEUCHI YASUMASA
SHINOHARA YUJI
KAWASE TAKEO
Application Number:
JP2007221776A
Publication Date:
March 12, 2009
Filing Date:
August 28, 2007
Export Citation:
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Assignee:
SEIKO EPSON CORP
KOKUSAI KIBAN ZAIRYO KENKYUSHO
International Classes:
H01M4/38; H01M4/134; H01M4/1395; H01M4/70; H01M4/74; H01M10/052; H01M10/0562; H01M10/0585
Attorney, Agent or Firm:
Tatsuya Masuda
Kazuo Asahi