Title:
METHOD FOR PRODUCING SEPARATOR, METHOD FOR MANUFACTURING MOLTEN SALT BATTERY, SEPARATOR, AND MOLTEN SALT BATTERY
Document Type and Number:
WIPO Patent Application WO/2011/126047
Kind Code:
A1
Abstract:
Disclosed are: a method for producing a separator that can be used in a molten salt battery and is not easily damaged; a method for manufacturing a molten salt battery; a separator; and a molten salt battery which comprises the separator. Specifically, a separator (3) of a molten salt battery is configured of a porous resin sheet. The resin sheet is provided with hydrophilicity, so that the separator (3) has improved wettability with respect to a molten salt. If the resin sheet is a fluororesin sheet, C-F bonds in the fluororesin are broken by impregnating the sheet with water and irradiating the sheet with ultraviolet light, so that hydrophilic groups such as OH groups are formed in the surface layer by a reaction of water and the sheet is provided with hydrophilicity due to the hydrophilic groups. Since the separator (3), which is formed of a resin, is not easily damaged, the separator can be formed in the shape of a bag. A molten salt battery that comprises a separator (3) having the shape of a bag is prevented from dendrite growth, and has improved charge/discharge cycle characteristics.
Inventors:
FUKUNAGA ATSUSHI (JP)
SAKAI SHOICHIRO (JP)
HIRAIWA CHIHIRO (JP)
NITTA KOJI (JP)
MAJIMA MASATOSHI (JP)
INAZAWA SHINJI (JP)
SAKAI SHOICHIRO (JP)
HIRAIWA CHIHIRO (JP)
NITTA KOJI (JP)
MAJIMA MASATOSHI (JP)
INAZAWA SHINJI (JP)
Application Number:
PCT/JP2011/058714
Publication Date:
October 13, 2011
Filing Date:
April 06, 2011
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
FUKUNAGA ATSUSHI (JP)
SAKAI SHOICHIRO (JP)
HIRAIWA CHIHIRO (JP)
NITTA KOJI (JP)
MAJIMA MASATOSHI (JP)
INAZAWA SHINJI (JP)
FUKUNAGA ATSUSHI (JP)
SAKAI SHOICHIRO (JP)
HIRAIWA CHIHIRO (JP)
NITTA KOJI (JP)
MAJIMA MASATOSHI (JP)
INAZAWA SHINJI (JP)
International Classes:
H01M10/04; H01M10/39; H01M50/403; H01M50/417; H01M50/426; H01M50/466
Foreign References:
| JP2002324579A | 2002-11-08 | |||
| JPH11306859A | 1999-11-05 | |||
| JPH06295717A | 1994-10-21 | |||
| JPH07245122A | 1995-09-19 | |||
| JPH11339852A | 1999-12-10 | |||
| JPH09320637A | 1997-12-12 | |||
| JPH07153492A | 1995-06-16 | |||
| JPH07122257A | 1995-05-12 |
Attorney, Agent or Firm:
KOHNO, Takao (JP)
Takao Kono (JP)
Takao Kono (JP)
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Claims: