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Title:
ナトリウム二次電池、ナトリウム二次電池用負極の製造方法および電気機器
Document Type and Number:
Japanese Patent JP5812482
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide: a sodium secondary battery having a working voltage of 4 V or more and excellent in cycle life; and a method for manufacturing a negative electrode for a sodium ion secondary battery.SOLUTION: A sealed sodium secondary battery includes: a positive electrode which has a carbon-based positive electrode active material capable of adsorbing and desorbing anions; a negative electrode which has a negative electrode active material (Y) capable of adsorbing and desorbing sodium; and an electrolyte. In the sodium secondary battery, the negative electrode contains NaX[where, X represents one or more elements selected from among F, Cl, Br, I, O, S, Se and Te, α represents 1-2, and β represents 1-5] and a binder.

Inventors:
Takashi Mukai
Tetsuo Sakai
Akihiro Yoshizawa
Application Number:
JP2011193704A
Publication Date:
November 11, 2015
Filing Date:
September 06, 2011
Export Citation:
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Assignee:
National Institute of Advanced Industrial Science and Technology
International Classes:
H01M10/054; H01M4/134; H01M4/1395; H01M4/38; H01M4/583; H01M4/62; H01M4/66; H01M10/0568; H01M10/0569
Domestic Patent References:
JP2009135074A
JP2013048077A
Attorney, Agent or Firm:
Patents corporation Blitas
Mikiji Sugioka
Chihara