专利名称：Cathode material for lithium secondary
battery, lithium secondary battery, andsecondary battery module using the battery
发明人：Tatsuya Toyama,Kazushige Kohno申请号：US13034601申请日：20110224公开号：US08951448B2公开日：20150210
专利附图：
摘要：A cathode material for a lithium secondary battery capable of stably
suppressing manganese dissolution even under high temperature and voltage conditions
is provided. Further, by using the cathode material for a lithium secondary battery, alithium secondary battery excellent in a charge/discharge cycle profile at a hightemperature and a secondary battery module equipped with the battery are provided.The cathode material for a lithium secondary battery comprises a lithium manganesecomposite oxide and a coating layer formed on the surface of the lithium manganesecomposite oxide. The coating layer includes an oxide compound or a fluoride compoundeach containing M (wherein, M is at least one element selected from the group of Mg, Aland Cu), and a phosphorous compound. An atomic density of M at the side of the lithiummanganese composite oxide in the coating layer is higher than an atomic density of M atthe side of a surface layer of the coating layer facing to the electrolyte.
申请人：Tatsuya Toyama,Kazushige Kohno
地址：Hitachi JP,Hitachi JP
国籍：JP,JP
代理机构：Antonelli, Terry, Stout & Kraus, LLP.
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