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    • 1. 发明申请
    • DESIGN AND FABRICATION OF ELECTRODES WITH GRADIENTS
    • 具有梯度的电极的设计和制造
    • WO2011109815A1
    • 2011-09-09
    • PCT/US2011/027416
    • 2011-03-07
    • A123 SYSTEMS, INC.THOMAS-ALYEA, Karen, E.HOLMAN, Richard, K.RILEY, Gilbert, N.Jr.BABINEC, Susan, J.
    • THOMAS-ALYEA, Karen, E.HOLMAN, Richard, K.RILEY, Gilbert, N.Jr.BABINEC, Susan, J.
    • H01M4/58H01M4/62H01M4/68
    • H01M4/587H01M2004/021
    • An electrode has a front face furthest from the current collector and a back face closest to the current collector and Is disposed on the current collector, and the electrode has a primary gradient of one of a chemical, physical and performance properties of the electroactive particle composition between the front and back faces, with the proviso that the primary gradient is not a bulk porosity gradient. In some embodiments, the electrode further comprises one or more secondary gradients Imposed over the primary gradient. The secondary gradient is one or more gradients selected from the group consisting of particle size gradient, particle size distribution gradient, particle morphology gradient, particle intemal porosity, bulk porosity, particle volumetric charge-transfer resistance gradient, particle specific surface area gradient, particle crystalline structure gradient, particle crystallite size gradient, particle chemical composition gradient, particle robustness to cycling gradient, binder gradient, conductive additive gradient, and combinations thereof.
    • 电极具有与集电体最远的前面和最靠近集电体的背面,并且设置在集电体上,并且电极具有电活性颗粒组合物的化学,物理和性能之一的一级梯度 在前面和后面之间,条件是主梯度不是体积孔隙度梯度。 在一些实施例中,电极还包括暴露于主梯度上的一个或多个次级梯度。 次级梯度是选自粒度梯度,粒度分布梯度,颗粒形态梯度,颗粒内部孔隙率,体积孔隙率,颗粒体积电荷转移阻力梯度,颗粒比表面积梯度,颗粒结晶的一个或多个梯度 结构梯度,颗粒微晶尺寸梯度,颗粒化学组成梯度,颗粒对循环梯度的鲁棒性,粘合剂梯度,导电添加剂梯度及其组合。
    • 10. 发明申请
    • LAMINATED BATTERY CELL AND METHODS FOR CREATING THE SAME
    • 层压电池单元及其制造方法
    • WO2010081150A1
    • 2010-07-15
    • PCT/US2010/020769
    • 2010-01-12
    • A123 SYSTEMS, INC.BABINEC, Susan, J.LESS, Gregory, B.VIEUA, Dave
    • BABINEC, Susan, J.LESS, Gregory, B.VIEUA, Dave
    • H01M2/14
    • H01M2/1686H01M2/0217H01M2/166H01M2/1673H01M10/0525H01M2220/30Y10T29/49108
    • Electrodes with a multilayer or monolayer composite separator are described. The multilayer composite separator comprises multiple individual composite separator layers. Each individual composite separator layer comprises inorganic particulate material(s) and organic polymer(s) with different inorganic particulate material/polymer weight ratios. The multilayer composite separator layer is constructed in a way such that the composite separator layer adjacent to the electrode active material contains a higher weight percentage of the inorganic particulate material and lower weight percentage of the organic polymer than the composite separator layer outermost from the electrode current collector. Laminated cells comprising a positive electrode, a negative electrode, a laminated multilayer or monolayer composite separator layer are described, wherein at least one of the electrodes has a multilayer or monolayer composite separator disposed onto the surface of the electrode. Methods of making such laminated cells are also described.
    • 描述了具有多层或单层复合隔板的电极。 多层复合隔板包括多个单独的复合隔板层。 每个单独的复合隔离层包括具有不同无机颗粒材料/聚合物重量比的无机颗粒材料和有机聚合物。 多层复合隔离层的构造方式使得与电极活性物质相邻的复合隔离层相比电极电流最外层的复合隔离层含有较高重量百分比的无机颗粒材料和较低重量百分数的有机聚合物 集电极。 描述了包括正极,负极,层压多层或单层复合隔板层的层压电池,其中至少一个电极具有设置在电极表面上的多层或单层复合隔板。 还描述了制造这种层压电池的方法。