Title:
HEAT-TOLERANT BATTERY AND CHARGING/DISCHARGING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2014/021044
Kind Code:
A1
Abstract:
A heat tolerant battery provided with: a positive electrode that contains a positive electrode current collector and a positive electrode active material that is fixed to the positive electrode current collector, said positive electrode active material containing a sodium-containing transition metal compound capable of electrochemically storing and discharging sodium ion; a negative electrode that contains a negative electrode current collector and a negative electrode active material that is fixed to the negative electrode current collector, said negative electrode active material containing at least one member selected from the group consisting of a sodium-containing titanium compound and hardly graphitizable carbon that are capable of storing and discharging sodium ion at a lower potential than the sodium-containing transition metal compound ; and a sodium ion-conductive electrode that is at least interposed between the positive electrode and the negative electrode and contains a salt of an organic cation having a pyrrolidinium skeleton with a bis(perfluoroalkylsulfonyl)imide anion.
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Inventors:
NUMATA KOMA (JP)
INAZAWA SHINJI (JP)
NITTA KOJI (JP)
SAKAI SHOICHIRO (JP)
FUKUNAGA ATSUSHI (JP)
ITANI EIKO (JP)
INAZAWA SHINJI (JP)
NITTA KOJI (JP)
SAKAI SHOICHIRO (JP)
FUKUNAGA ATSUSHI (JP)
ITANI EIKO (JP)
Application Number:
PCT/JP2013/068125
Publication Date:
February 06, 2014
Filing Date:
July 02, 2013
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H01M10/054; H01M4/485; H01M4/587; H01M4/62; H01M10/0568; H01M10/39; H01M50/414; H01M50/437
Domestic Patent References:
WO2012073653A1 | 2012-06-07 | |||
WO2011111566A1 | 2011-09-15 | |||
WO2013002359A1 | 2013-01-03 |
Foreign References:
JP2011142016A | 2011-07-21 | |||
JP2007517364A | 2007-06-28 |
Other References:
PREMKUMAR SENGUTTUVAN ET AL.: "Na2Ti307:Lowest Voltage Ever Reported Oxide Insertion Electrode for Sodium Ion Batteries", CHEMISTRY OF MATERIALS, vol. 23, 30 August 2011 (2011-08-30), pages 4109 - 4111
KEISUKE KURODA ET AL.: "NaFSA-MPPyrFSA Nigen-kei Ion Ekitai o Mochiita Sodium Niji Denchi", ABSTRACTS, BATTERY SYMPOSIUM IN JAPAN, vol. 52, 19 October 2011 (2011-10-19), pages 234
KEISUKE KURODA ET AL.: "NaFSA-MPPyrFSA Nigen-kei Ion Ekitai o Mochiita Sodium Niji Denchi", ABSTRACTS, BATTERY SYMPOSIUM IN JAPAN, vol. 52, 19 October 2011 (2011-10-19), pages 234
Attorney, Agent or Firm:
SunCrest Patent and Trademark Attorneys (JP)
Patent business corporation Sun Crest international patent firm (JP)
Patent business corporation Sun Crest international patent firm (JP)
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