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    • 5. 发明授权
    • Solid electrolyte secondary battery
    • 固体电解质二次电池
    • US06506523B1
    • 2003-01-14
    • US09446291
    • 1999-12-17
    • Tsuyonobu HatazawaTakayuki KondoYukiko Iijima
    • Tsuyonobu HatazawaTakayuki KondoYukiko Iijima
    • H01M618
    • H01M10/0565H01M10/0525
    • 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 be 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 is used in combination with the above one.
    • 提供一种固体电解质二次电池,其包括设置在电极之间的正极,负极和固体电解质。 固体电解质含有作为基质聚合物的偏二氟乙烯/六氟丙烯嵌段共聚物。 嵌段共聚物的膜具有高机械韧性和溶剂保留能力。 使用该嵌段共聚物膜作为固体电解质的基质聚合物大大提高了粘合强度,负载特性和低温性能。 在嵌段共聚物中,六氟丙烯的比例优选为3〜7.5重量%。 分子量应优选超过55万。 超过300,000 Mw和550,000 Mw的嵌段共聚物与上述组合使用。