-
公开(公告)号：US20070122707A1
公开(公告)日：2007-05-31
申请号：US11553740
申请日：2006-10-27
申请人： Ou Jung KWON , Yong Ju LEE , Won Seok CHANG , Ki Tae KIM , Seo Jae LEE , Ki Young LEE
发明人： Ou Jung KWON , Yong Ju LEE , Won Seok CHANG , Ki Tae KIM , Seo Jae LEE , Ki Young LEE
CPC分类号： H01M4/587 , H01M4/133 , H01M4/366 , H01M4/38 , H01M10/0525
摘要： Disclosed is an electrode active material comprising: a core layer capable of repeating lithium intercalation/deintercalation; an amorphous carbon layer; and a crystalline carbon layer, successively, wherein the core layer comprises at least two core particles. A secondary battery comprising the same electrode active material is also disclosed. The electrode active material can inhibit variations in volume of the core layer that may occur during repeated charge/discharge cycles, since the core layer comprising at least two core particles, each core particle having an increased area that is in contact with the carbon layer coated thereon. Therefore, the battery using the electrode active material can provide improved cycle life characteristics.
摘要翻译： 公开了一种电极活性材料，包括：能够重复锂嵌入/脱嵌的芯层; 无定形碳层; 和结晶碳层，其中所述芯层包含至少两个核心颗粒。 还公开了包含相同电极活性材料的二次电池。 电极活性材料可以抑制在重复的充电/放电循环期间可能发生的芯层的体积变化，因为芯层包括至少两个芯颗粒，每个芯颗粒具有与涂覆的碳层接触的增加的面积 上。 因此，使用电极活性物质的电池可以提供改善的循环寿命特性。
-
公开(公告)号：US20070099088A1
公开(公告)日：2007-05-03
申请号：US11553675
申请日：2006-10-27
申请人： Ou Jung KWON , Yong Ju LEE , Won Seok CHANG , Ki Tae KIM , Seo Jae LEE , Ki Young LEE
发明人： Ou Jung KWON , Yong Ju LEE , Won Seok CHANG , Ki Tae KIM , Seo Jae LEE , Ki Young LEE
摘要： Disclosed is an electrode active material comprising: a core layer capable of repeating lithium intercalation/deintercalation; an amorphous carbon layer; and a crystalline carbon layer, successively, wherein the crystalline carbon layer comprises sheet-like carbon layer units and partially or totally comprises multilayer sheet-like carbon layer units. A secondary battery comprising the same electrode active material is also disclosed. The electrode active material can inhibit variations in volume of the core layer that may occur during repeated charge/discharge cycles, by virtue of the interstitial volumes formed by the multilayer sheet-like carbon layer units in the crystalline carbon layer. Therefore, the battery using the electrode active material can provide improved cycle life characteristics.
摘要翻译： 公开了一种电极活性材料，包括：能够重复锂嵌入/脱嵌的芯层; 无定形碳层; 和结晶碳层，其中结晶碳层包括片状碳层单元，并且部分或全部包含多层片状碳层单元。 还公开了包含相同电极活性材料的二次电池。 由于在结晶碳层中由多层片状碳层单元形成的间隙体积，电极活性物质可以抑制重复充电/放电循环期间可能发生的芯层的体积变化。 因此，使用电极活性物质的电池可以提供改善的循环寿命特性。
-
搜索结果
2 条记录 (耗时 0.025 秒)