Battery electrode compositions and methods of fabrication are provided that utilize composite particles. Each of the composite particles may comprise, for example, a high-capacity active material and a porous, electrically-conductive scaffolding matrix material. The active material may store and release ions during battery operation, and may exhibit (i) a specific capacity of at least 220 mAh/g as a cathode active material or (ii) a specific capacity of at least 400 mAh/g as an anode active material. The active material may be disposed in the pores of the scaffolding matrix material. According to various designs, each composite particle may exhibit at least one material property that changes from the center to the perimeter of the scaffolding matrix material.
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机译：提供了利用复合颗粒的电池电极组合物和制造方法。每个复合颗粒可包括例如高容量活性材料和多孔导电支架基质材料。活性材料可以在电池运行期间存储和释放离子，并且可以表现出（i）作为阴极活性材料的至少220 mAh / g的比容量或（ii）作为阳极的至少400 mAh / g的比容量活性物质。活性材料可以设置在支架基质材料的孔中。根据各种设计，每个复合颗粒可表现出至少一种从支架基质材料的中心到周边变化的材料特性。
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