发明申请
- 专利标题： LITHIUM-ION SECONDARY BATTERY
- 专利标题（中）： 锂离子二次电池
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申请号： US14388894申请日： 2012-03-30
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公开(公告)号： US20150072232A1公开(公告)日： 2015-03-12
- 发明人: Hiroki Nagai
- 申请人： Hiroki Nagai
- 申请人地址： JP Toyota-shi, Aichi
- 专利权人： TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人： TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人地址： JP Toyota-shi, Aichi
- 国际申请： PCT/JP2012/058664 WO 20120330
- 主分类号： H01M4/36
- IPC分类号： H01M4/36 ; H01M4/505 ; H01M4/04 ; H01M4/485 ; H01M4/62 ; H01M4/131 ; H01M4/525
摘要：
In a lithium-ion secondary battery (100), positive electrode active material particles (610) each include a shell portion (612) made of a layered lithium-transition metal oxide, a hollow portion (614) formed inside the shell portion (612), and a through-hole (616) penetrating through the shell portion (612). A positive electrode active material layer (223) has a density A of 1.80 g/cm3≦A≦2.35 g/cm3, and a negative electrode active material layer (243) has a density B of 0.95 g/cm3≦B≦1.25 g/cm3.
公开/授权文献
- US09882207B2 Lithium-ion secondary battery 公开/授权日：2018-01-30