Ultra thin solid state lithium batteries and process of preparing same
    1.
    发明授权
    Ultra thin solid state lithium batteries and process of preparing same 失效
    超薄固态锂电池及其制备方法

    公开(公告)号:US6030421A

    公开(公告)日:2000-02-29

    申请号:US64821

    申请日:1998-04-23

    摘要: There is provided a mother-battery containing at least the following films: an anode of metallic lithium or sodium, a polymer electrolyte which is conductive towards the alkaline ions of the anode and also acts as a separator between the electrodes, and a composite cathode consisting of a compound which is reducible to lithium or sodium, an additive of electronic conduction and a polymer electrolyte binder. The mother battery also includes an electronically conductive thin coating on the external face of the anode and, possibly of the cathode, in which the conductive material is chemically inert towards the electrode material and which also serves to establish permanent electrical contacts on the external faces. The laminated mother-battery of larger surface area and at least partially charged is thereafter subjected to a sharp mechanical cutting out to give thin polymer electrolyte batteries with lithium or sodium anode. The thus cut out batteries preserve substantially their voltage after mechanical cutting out which is recovered by a mechanism of self-healing.

    摘要翻译: 提供了至少包含以下膜的母体电池:金属锂或钠的阳极,朝向阳极的碱性离子导电并且还用作电极之间的隔板的聚合物电解质,以及包含 的可还原成锂或钠的化合物,电子传导添加剂和聚合物电解质粘合剂。 母电池还包括在阳极的外表面上以及可能的阴极的电子导电薄涂层,其中导电材料对于电极材料具有化学惰性,并且还用于在外表面上建立永久性电接触。 然后将具有较大表面积并且至少部分带电的叠层母电池进行锋利的机械切割以得到具有锂或钠阳极的薄聚合物电解质电池。 这样切出的电池在机械切割之后基本保持其电压,其通过自愈机制回收。

    Electrolytic composition with polymer base for electrochemical generator
    2.
    发明授权
    Electrolytic composition with polymer base for electrochemical generator 失效
    电化学发生器用电解质组合物

    公开(公告)号:US06806002B2

    公开(公告)日:2004-10-19

    申请号:US09878356

    申请日:2001-06-12

    IPC分类号: H01M462

    摘要: The invention concerns an aprotic electrolytic composition located in the separator and in at least one composite electrode containing a powder of an active electrode material, and if necessary an electronic conduction additive of an electrochemical generator. The electrolytic composition comprises a first polymer matrix consisting of a polyether and at least a second polymer matrix, macroscopically separated, and also at least an alkaline salt as well as a polar aprotic solvent: The polymer matrices are capable of being swollen by at least one of the polar aprotic solvents. The solvent or mixture of solvents is unevenly distributed between the polymer matrices. The invention also concerns an electrochemical generator comprising a negative electrode and positive electrode reversible to alkaline ions and a separator with polymer electrolyte, the electrolytic component of which is the composition described above. The invention further concerns the manufacture in two or three steps of a sub-assembly of an electrochemical generator by coating an electrode support with a composite electrode containing the second matrix, followed by a surface coating on the electrode resulting from the preceding step with a solution containing the first polymer matrix so as to form the separator wholly or partly.

    摘要翻译: 本发明涉及位于分离器中的非质子电解组合物和至少一个含有活性电极材料的粉末的复合电极,如果需要的话,电化学发生器的电子导电添加剂。 电解质组合物包括由聚醚和至少第二聚合物基质组成的宏观分离的第一聚合物基质,以及至少一种碱性盐以及极性非质子溶剂。聚合物基质能够被至少一种 的极性非质子溶剂。 溶剂或溶剂混合物不均匀地分布在聚合物基质之间。 本发明还涉及一种电化学发生器,其包括负极和碱性离子可逆的正极和具有聚合物电解质的隔膜,其电解组分是上述组成。 本发明还涉及通过用包含第二基质的复合电极涂覆电极载体,然后在前述步骤中由溶液形成的电极上的表面涂层的方法,在电化学发生器的子组件的两个或三个步骤中制造两个或三个步骤 含有第一聚合物基质以全部或部分形成隔膜。

    Electrolytic composition with polymer base for electrochemical generator
    3.
    发明授权
    Electrolytic composition with polymer base for electrochemical generator 有权
    电化学发生器用电解质组合物

    公开(公告)号:US06280882B1

    公开(公告)日:2001-08-28

    申请号:US09142055

    申请日:1998-12-14

    IPC分类号: H01M614

    摘要: The invention concerns an aprotic electrolytic composition located in the separator and in at least one composite electrode containing a powder of an active electrode material, and if necessary an electronic conduction additive of an electrochemical generator The electrolytic composition comprises a first polymer matrix consisting of a polyether and at least a second polymer matrix, macroscopically separated, and also at least an alkaline salt as well as a polar aprotic solvent: The polymer matrices are capable of being swollen by at least one of the polar aprotic solvents. The solvent or mixture of solvents is unevenly distributed between the polymer matrices. The invention also concerns an electrochemical generator comprising a negative electrode and positive electrode reversible to alkaline ions and a separator with polymer electrolyte, the electrolytic component of which is the composition described above. The invention further concerns the manufacture in two or three steps of a sub-assembly of an electrochemical generator by coating an electrode support with a composite electrode containing the second matrix, followed by a surface coating on the electrode resulting from the preceding step with a solution containing the first polymer matrix so as to form the separator wholly or partly.

    摘要翻译: 本发明涉及位于分离器中的非质子电解组合物和至少一个含有活性电极材料粉末的复合电极,如果需要的话,电化学发生器的电子导电添加剂电解组合物包括由聚醚 和至少第二聚合物基质,宏观上分离的,以及至少一种碱性盐以及极性非质子传递溶剂。聚合物基质能够被至少一种极性非质子传递溶剂溶胀。 溶剂或溶剂混合物不均匀地分布在聚合物基质之间。 本发明还涉及一种电化学发生器,其包括负极和碱性离子可逆的正极和具有聚合物电解质的隔膜,其电解组分是上述组成。 本发明还涉及通过用包含第二基质的复合电极涂覆电极载体,然后在前述步骤中由溶液形成的电极上的表面涂层的方法,在电化学发生器的子组件的两个或三个步骤中制造两个或三个步骤 含有第一聚合物基质以全部或部分形成隔膜。

    Rechargeable lithium anode for polymer electrolyte battery
    4.
    发明授权
    Rechargeable lithium anode for polymer electrolyte battery 失效
    用于聚合物电解质电池的可充电锂阳极

    公开(公告)号:US6007935A

    公开(公告)日:1999-12-28

    申请号:US844858

    申请日:1997-04-23

    摘要: Rechargeable generator consisting of an anode of an alkali metal or a malleable alkali alloy, at least one polymer electrolyte which is conductive with respect to alkali cations and acts as separator, as well as at least one cathode which is reversible to cations of alkali metal and its current collector. The anode comprises a thin metallic sheet, which includes at the surface thereof a passivation film SEI capable of limiting reaction between the metal and the polymer electrolyte and to exchange lithium ions. The polymer electrolyte comprises a homogeneous separator which is capable of transmitting a pressure on the anode to resist against the dendridic strain of the metal of the anode by undergoing a rate of deformation lower than 35% of its thickness. The polymer electrolyte of the separator, contains a maximum amount of species which are reactive towards lithium and which can accumulate at the surface of the anode to permit a preservation of the quality of the ionic exchanges at the interface of the anode and electrolyte and finally, the combination of anode, electrolyte, cathode and collector is maintained under a mechanical strain which is sufficient to ensure that the separator confines the anode sheet in place to preserve the integrity of the lithium-electrolyte interface during consecutive cycles of dissolution/plating.

    摘要翻译: 由碱金属或可延展的碱金属的阳极组成的可充电发电机,至少一种相对于碱性阳离子导电并作为隔离物的聚合物电解质,以及至少一个可碱性金属阳离子的阴极, 它的电流收集器。 阳极包括薄金属片,其表面上包括能够限制金属和聚合物电解质之间的反应并交换锂离子的钝化膜SEI。 聚合物电解质包括均匀的隔膜,其能够通过经历低于其厚度的35%的变形速率来传递阳极上的压力以抵抗阳极金属的树枝状应变。 隔板的聚合物电解质包含最大量的对锂具有反应性的物质,并且可以积聚在阳极的表面以允许在阳极和电解质的界面处保持离子交换的质量,最后, 阳极,电解质,阴极和集电器的组合保持在足够的机械应变下,该机械应变足以确保隔板将阳极片限制在适当位置,以在连续的溶解/电镀循环期间保持锂电解质界面的完整性。