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    Lithium Iron Phosphate Cathode Materials With Enhanced Energy Density And Power Performance
    3.
    发明申请
    Lithium Iron Phosphate Cathode Materials With Enhanced Energy Density And Power Performance 审中-公开
    具有增强的能量密度和功率性能的磷酸铁锂阴极材料

    公开(公告)号：US20100327223A1

    公开(公告)日：2010-12-30

    申请号：US12827565

    申请日：2010-06-30

    申请人： Karim ZAGHIB ,  Patrick Charest ,  Abdelbast Guerfi ,  Guoxian Liang

    发明人： Karim ZAGHIB ,  Patrick Charest ,  Abdelbast Guerfi ,  Guoxian Liang

    IPC分类号： H01M4/90 ,  B05D5/00

    CPC分类号： H01M4/5825 ,  H01M4/364 ,  H01M4/366 ,  H01M4/625 ,  H01M10/0525

    摘要： The invention is related to a cathode material comprising particles having a lithium metal phosphate core and a pyrolytic carbon deposit, said particles having a synthetic multimodal particle size distribution comprising at least one fraction of micron size particles and one fraction of submicron size particles, said lithium metal phosphate having formula LiMPO4 wherein M is at least Fe or Mn.Said material is prepared by method comprising the steps of providing starting micron sized particles and starting submicron sized particles of at least one lithium metal phosphate or of precursors of a lithium metal phosphate; mixing by mechanical means said starting particles; making a pyrolytic carbon deposit on the lithium metal phosphate starting particles before or after the mixing step, and on their metal precursor before or after mixing the particles; optionally adding carbon black, graphite powder or fibers to the said lithium metal phosphate particles before the mechanical mixing.

    摘要翻译： 本发明涉及包含具有锂金属磷酸盐芯和热解碳沉积物的颗粒的阴极材料，所述颗粒具有包含至少一部分微米级颗粒和一部分亚微米尺寸颗粒的合成多峰粒度分布，所述锂 具有式LiMPO 4的金属磷酸盐，其中M至少为Fe或Mn。 所述材料通过包括以下步骤的方法制备：包括提供起始微米尺寸的颗粒和开始至少一种锂金属磷酸盐或锂金属磷酸盐前体的亚微米尺寸的颗粒; 通过机械装置混合所述起始颗粒; 在混合步骤之前或之后在锂金属磷酸盐起始颗粒上制备热解碳沉积物，以及在混合颗粒之前或之后对其金属前体; 在机械混合之前，任选地将碳黑，石墨粉或纤维加入到所述锂金属磷酸盐颗粒中。

    Lithium iron phosphate cathode materials with enhanced energy density and power performance
    6.
    发明申请
    Lithium iron phosphate cathode materials with enhanced energy density and power performance 审中-公开
    磷酸铁锂正极材料具有增强的能量密度和功率性能

    公开(公告)号：US20090155689A1

    公开(公告)日：2009-06-18

    申请号：US12000625

    申请日：2007-12-14

    申请人： Karim Zaghib ,  Patrick Charest ,  Abdelbast Guerfi ,  Guoxian Liang

    发明人： Karim Zaghib ,  Patrick Charest ,  Abdelbast Guerfi ,  Guoxian Liang

    IPC分类号： H01M4/40 ,  H01M4/48 ,  C01B25/30

    CPC分类号： H01M4/5825 ,  H01M4/364 ,  H01M4/366 ,  H01M4/625 ,  H01M10/0525

    摘要： The invention is related to a cathode material comprising particles having a lithium metal phosphate core and a pyrolytic carbon deposit, said particles having a synthetic multimodal particle size distribution comprising at least one fraction of micron size particles and one fraction of submicron size particles, said lithium metal phosphate having formula LiMPO4 wherein M is at least Fe or Mn.Said material is prepared by method comprising the steps of providing starting micron sized particles and starting submicron sized particles of at least one lithium metal phosphate or of precursors of a lithium metal phosphate; mixing by mechanical means said starting particles; making a pyrolytic carbon deposit on the lithium metal phosphate starting particles before or after the mixing step, and on their metal precursor before or after mixing the particles; optionally adding carbon black, graphite powder or fibers to the said lithium metal phosphate particles before the mechanical mixing.

    摘要翻译： 本发明涉及包含具有锂金属磷酸盐芯和热解碳沉积物的颗粒的阴极材料，所述颗粒具有合成多峰粒度分布，其包含至少一部分微米级颗粒和一部分亚微米级颗粒，所述锂 具有式LiMPO 4的金属磷酸盐，其中M至少为Fe或Mn。 所述材料通过包括以下步骤的方法制备：包括提供起始微米尺寸的颗粒和开始至少一种锂金属磷酸盐或锂金属磷酸盐前体的亚微米尺寸的颗粒; 通过机械装置混合所述起始颗粒; 在混合步骤之前或之后在锂金属磷酸盐起始颗粒上制备热解碳沉积物，以及在混合颗粒之前或之后对其金属前体; 在机械混合之前，任选地将碳黑，石墨粉或纤维加入到所述锂金属磷酸盐颗粒中。

    Electrolytic composition with polymer base for electrochemical generator
    9.
    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

    申请人： Alain Vallee ,  Michel Armand ,  Yves Choquette ,  Andre Belanger ,  Michel Gauthier ,  Michel Perrier ,  Karim Zaghib ,  Estelle Potvin ,  Simon Besner

    发明人： Alain Vallee ,  Michel Armand ,  Yves Choquette ,  Andre Belanger ,  Michel Gauthier ,  Michel Perrier ,  Karim Zaghib ,  Estelle Potvin ,  Simon Besner

    IPC分类号： H01M462

    CPC分类号： H01M2/1686 ,  H01M2/1673 ,  H01M6/181 ,  Y10T29/49108 ,  Y10T29/49115

    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。