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    CURRENT COLLECTOR FOR NONAQUEOUS ELECTROLYTE BATTERY, ELECTRODE FOR NONAQUEOUS ELECTROLYTE BATTERY, AND NONAQUEOUS ELECTROLYTE BATTERY
    53.
    发明专利
    CURRENT COLLECTOR FOR NONAQUEOUS ELECTROLYTE BATTERY, ELECTRODE FOR NONAQUEOUS ELECTROLYTE BATTERY, AND NONAQUEOUS ELECTROLYTE BATTERY 未知

    公开(公告)号：CA2800888A1

    公开(公告)日：2011-12-08

    申请号：CA2800888

    申请日：2011-05-23

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： OTA NOBUHIRO ,  HOSOE AKIHISA ,  MAJIMA MASATOSHI ,  NITTA KOJI

    IPC: H01M4/66 ,  H01M4/06 ,  H01M4/13

    Abstract: Disclosed is a current collector for a non-aqueous electrolyte battery, which comprises an aluminum porous body having a reduced oxygen content in the surface thereof and can have improved discharge capacity and improved charge-discharge efficiency. The current collector for a non-aqueous electrolyte battery comprises an aluminum porous body, wherein the oxygen content in the surface of the aluminum porous body is 3.1 mass% or less. The aluminum porous body comprises an aluminum alloy containing at least one element selected from the group consisting of Cr, Mn and a transition metal element. The aluminum porous body can be produced by a process which comprises forming an aluminum alloy layer (2) on the surface of a resin (1) of a resin body (1f) that has a communicated hole formed therein and subsequently heating the resin body (i.e., a resin body (3) coated with the aluminum alloy layer) to a temperature equal to or lower than the melting point of the aluminum alloy while immersing the resin body in a molten salt and while applying a potential lower than a standard electrode potential of aluminum to the aluminum alloy layer (2), thereby thermally decomposing the resin body (1f) (the resin (1)).

    METHOD FOR PRODUCING SEPARATOR, METHOD FOR PRODUCING MOLTEN SALT BATTERY, SEPARATOR, AND MOLTEN SALT BATTERY
    55.
    发明专利
    METHOD FOR PRODUCING SEPARATOR, METHOD FOR PRODUCING MOLTEN SALT BATTERY, SEPARATOR, AND MOLTEN SALT BATTERY 未知

    公开(公告)号：CA2795615A1

    公开(公告)日：2011-10-13

    申请号：CA2795615

    申请日：2011-04-06

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： FUKUNAGA ATSUSHI ,  SAKAI SHOICHIRO ,  HIRAIWA CHIHIRO ,  NITTA KOJI ,  MAJIMA MASATOSHI ,  INAZAWA SHINJI

    IPC: H01M2/16 ,  H01M10/04 ,  H01M10/39

    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.

    NEGATIVE ELECTRODE MATERIAL FOR BATTERY, NEGATIVE ELECTRODE PRECURSOR MATERIAL FOR BATTERY, AND BATTERY
    56.
    发明专利
    NEGATIVE ELECTRODE MATERIAL FOR BATTERY, NEGATIVE ELECTRODE PRECURSOR MATERIAL FOR BATTERY, AND BATTERY 未知

    公开(公告)号：CA2776741A1

    公开(公告)日：2011-09-15

    申请号：CA2776741

    申请日：2011-03-01

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： MAJIMA MASATOSHI ,  INAZAWA SHINJI ,  SAKAI SHOICHIRO ,  NITTA KOJI ,  FUKUNAGA ATSUSHI ,  HIRAIWA CHIHIRO

    IPC: H01M10/39 ,  H01M4/02 ,  H01M4/40

    Abstract: A molten salt battery (1) comprises: an Al case (5) having an almost rectangular parallelepiped shape; and a positive electrode (2) comprising an active material film (22) formed on an Al current collector (21), a separator (3) comprising a glass cloth impregnated with a molten salt that serves as an electrolyte, and a negative electrode (4) comprising a Zn film (42) and an active material film (43) formed on an Al current collector (41), all of which are contained in the Al case (5). In the molten salt battery (1), the active material film (43) contains an active material comprising an Sn-Na alloy, the active material film (22) and the active material film (43) can store and release Na ions from the molten salt and therefore the hardness on the surface side (i.e., the active material side) becomes higher than that of the Na negative electrode upon driving of the battery, the generation of Na dendrites can be prevented, and the capacity of the battery can be increased. Thus, disclosed are: a negative electrode material for a battery; a negative electrode precursor material for a battery; and a battery equipped with a negative electrode comprising the negative electrode material.

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