专利名称：Positive electrode material, its
manufacturing method and lithiumsecondary battery
发明人：Toyotaka Yuasa,Masahiro Kasai,Genei
Nakajima
申请号：US11797801申请日：20070508
公开号：US20070212602A1公开日：20070913
专利附图：
摘要：The object of the invention is to provide positive electrode material in which a
discharge rate characteristic and battery capacity are hardly deteriorated in theenvironment of low temperature of −30° C., its manufacturing method and a lithiumsecondary battery using the positive electrode material. The invention is characterized bythe positive electrode material in which plural primary particles are flocculated and asecondary particle is formed, and the touch length of the primary particles is equivalentto 10 to 70% of the length of the whole periphery on the section of the touched primaryparticles.
申请人：Toyotaka Yuasa,Masahiro Kasai,Genei Nakajima
地址：Hitachi JP,Mito JP,Kumagaya JP
国籍：JP,JP,JP
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