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    4.
    发明专利
    未知

    公开(公告)号：DE69941806D1

    公开(公告)日：2010-01-28

    申请号：DE69941806

    申请日：1999-04-22

    Applicant: SONY CORP

    Inventor： HATAZAWA TSUYONOBU ,  KONDO TAKAYUKI ,  IIJIMA YUKIKO

    IPC: C08F214/22 ,  C08G65/32 ,  C08G65/323 ,  H01M4/62 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/058

    Abstract: A solid-electrolyte secondary battery is provided which comprises a positive electrode, negative electrode and a solid electrolyte provided between the electrodes. The solid electrolyte contains as a matrix polymer a vinylidene fluoride/hexafluoropropylene block copolymer. The film of the block copolymer has a high mechanical toughness and solvent retaining capability. Use of this block copolymer film as the matrix polymer of the solid electrolyte greatly improves the adhesive strength, load characteristic and low-temperature performance. In the block copolymer, the proportion of hexafluoropropylene should preferably 3 to 7.5 % by weight. The molecular weight should preferably be of over 550,000. A block copolymer of over 300,000 in Mw and under 550,000 in Mw may be used in combination with the above one.

    5.
    发明专利
    未知

    公开(公告)号：ID23699A

    公开(公告)日：2000-05-11

    申请号：ID991589

    申请日：1999-04-22

    Applicant: SONY CORP

    Inventor： HATAZAWA TSUYONOBU ,  KONDO TAKAYUKI ,  IIJIMA YUKIKO

    IPC: C08F214/22 ,  C08G65/323 ,  H01M4/62 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/058 ,  H01M6/18

    Abstract: A solid-electrolyte secondary battery is provided which comprises a positive electrode, negative electrode and a solid electrolyte provided between the electrodes. The solid electrolyte contains as a matrix polymer a vinylidene fluoride/hexafluoropropylene block copolymer. The film of the block copolymer has a high mechanical toughness and solvent retaining capability. Use of this block copolymer film as the matrix polymer of the solid electrolyte greatly improves the adhesive strength, load characteristic and low-temperature performance. In the block copolymer, the proportion of hexafluoropropylene should preferably 3 to 7.5 % by weight. The molecular weight should preferably be of over 550,000. A block copolymer of over 300,000 in Mw and under 550,000 in Mw may be used in combination with the above one.

    SOLID ELECTROLYTIC SECONDARY BATTERY
    6.
    发明专利
    SOLID ELECTROLYTIC SECONDARY BATTERY 未知

    公开(公告)号：CA2294291A1

    公开(公告)日：1999-11-04

    申请号：CA2294291

    申请日：1999-04-22

    Applicant: SONY CORP

    Inventor： IIJIMA YUKIKO ,  KEZUKA KOICHIRO ,  HATAZAWA TSUYONOBU

    IPC: C08L27/16 ,  H01M4/62 ,  H01M6/18 ,  H01M10/05 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/058 ,  H01M10/40 ,  H01M4/02

    Abstract: A solid electrolytic secondary battery comprising a positive electrode, a negative electrode and a solid electrolyte interposed between the electrodes, wherein the solid electrolyte contains, as matrix polymer, fluorine polymer having a weight-average molecular weight (Mw) of 550,000 or larger, which polymer delivering an excellent adhesiveness to the active material layers of the positive and negative electrodes, thereby enabling a polymer sold electrolyte or a gel electrolyte to be bonded to electrode active material layers with a sufficient adhesive strength. In view of a paint viscosity, fluorine polymer having a weight-average molecular weight (Mw) of not smaller than 300,000 and less than 550,000 may be jointly used.

    SOLID ELECTROLYTIC SECONDARY BATTERY
    9.
    发明公开
    SOLID ELECTROLYTIC SECONDARY BATTERY 有权
    与固体电解质二次电池

    公开(公告)号：EP1001477A4

    公开(公告)日：2005-03-30

    申请号：EP99917115

    申请日：1999-04-22

    Applicant: SONY CORP

    Inventor： HATAZAWA TSUYONOBU ,  KONDO TAKAYUKI ,  IIJIMA YUKIKO

    IPC: C08F214/22 ,  C08G65/323 ,  H01M4/62 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/058 ,  H01M10/40 ,  C08G65/32 ,  H01M4/02

    CPC classification number: H01M10/0565 ,  H01M10/0525

    Abstract: A solid electrolytic secondary battery comprising a positive electrode, a negative electrode and a solid electrolyte interposed between the electrodes, wherein the solid electrolyte contains, as a matrix polymer, a block copolymer of vinylidene fluoride and hexafluoropropylene. The membrane of the block copolymer has a strong mechanical toughness and a high solvent retaining capability and, when used as a matrix polymer of the solid electrolyte, significantly improves an adhesion strength, load characteristics and low-temperature characteristics. A constitutional ratio of hexafluoropropylene in the block copolymer is preferably 3 to 7.5 wt.% with a molecular weight of not smaller than 550,000 and a copolymer having a weight-average molecular weight (Mw) of not smaller than 300,000 and smaller than 550,000 may be jointly used.

    10.
    发明专利
    未知

    公开(公告)号：AT452434T

    公开(公告)日：2010-01-15

    申请号：AT99917115

    申请日：1999-04-22

    Applicant: SONY CORP

    Inventor： HATAZAWA TSUYONOBU ,  KONDO TAKAYUKI ,  IIJIMA YUKIKO

    IPC: C08F214/22 ,  C08G65/32 ,  C08G65/323 ,  H01M4/62 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/058

    Abstract: A solid-electrolyte secondary battery is provided which comprises a positive electrode, negative electrode and a solid electrolyte provided between the electrodes. The solid electrolyte contains as a matrix polymer a vinylidene fluoride/hexafluoropropylene block copolymer. The film of the block copolymer has a high mechanical toughness and solvent retaining capability. Use of this block copolymer film as the matrix polymer of the solid electrolyte greatly improves the adhesive strength, load characteristic and low-temperature performance. In the block copolymer, the proportion of hexafluoropropylene should preferably 3 to 7.5 % by weight. The molecular weight should preferably be of over 550,000. A block copolymer of over 300,000 in Mw and under 550,000 in Mw may be used in combination with the above one.

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