Title:
POSITIVE ELECTRODE PLATE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2010/125729
Kind Code:
A1
Abstract:
Disclosed are: a positive electrode for a nonaqueous electrolyte secondary battery, which is capable of suppressing the generation of a gas when the charge/discharge is performed while having the positive electrode immersed in a nonaqueous electrolyte solution; and a method for producing the positive electrode for a nonaqueous electrolyte secondary battery.
Specifically disclosed is a positive electrode plate for a nonaqueous electrolyte secondary battery, which comprises a collector and a positive electrode mixture layer (22) that is formed on the collector. The positive electrode mixture layer contains a positive electrode active material (23) that reversibly absorbs and desorbs lithium ions, and lithium salts (24a, 25a) other than lithium hydroxide and lithium carbonate are present in at least fractured surfaces (24, 25) of the positive electrode active material (23). A method for producing the positive electrode plate for a nonaqueous electrolyte secondary battery comprises a step in which the positive electrode plate after rolling is reacted with an acidic gas or an acidic solution.
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Inventors:
WATANABE KOZO
DEGUCHI MASAKI
DEGUCHI MASAKI
Application Number:
PCT/JP2010/001512
Publication Date:
November 04, 2010
Filing Date:
March 04, 2010
Export Citation:
Assignee:
PANASONIC CORP (JP)
WATANABE KOZO
DEGUCHI MASAKI
WATANABE KOZO
DEGUCHI MASAKI
International Classes:
H01M4/139; H01M4/13; H01M4/36
Foreign References:
| JP2003317708A | 2003-11-07 | |||
| JP2007280830A | 2007-10-25 | |||
| JP2003123755A | 2003-04-25 | |||
| JP2005190996A | 2005-07-14 | |||
| JP2006318815A | 2006-11-24 |
Attorney, Agent or Firm:
MAEDA, Hiroshi et al. (JP)
Hiroshi Maeda (JP)
Hiroshi Maeda (JP)
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