公开(公告)号：US10483594B2

公开(公告)日：2019-11-19

申请号：US15541841

申请日：2015-09-29

申请人： Panasonic Corporation ,  Sanyo Electric Co., Ltd.

发明人： Hiroshi Kawada ,  Motoharu Saito ,  Kenichi Hotehama ,  Yoshinori Aoki

IPC分类号： H01M4/13 ,  H01M4/48 ,  H01M4/02 ,  H01M10/0587 ,  H01M4/131 ,  H01M4/136 ,  H01M10/0525

摘要： A positive electrode plate (11) includes a current collector (30) and a mixture layer (31) disposed on the current collector (30). The mixture layer (31) has a thin portion (32) with a thickness of less than 200 μm disposed on an inner coil half of the current collector (30) and a thick portion (33) having a larger thickness than the thin portion (32), the thick portion (33) having a yield loop height H measured by a stiffness test of 6 mm

公开(公告)号：US20180013173A1

公开(公告)日：2018-01-11

申请号：US15541841

申请日：2015-09-29

申请人： Panasonic Corporation ,  Sanyo Electric Co., Ltd.

发明人： Hiroshi Kawada ,  Motoharu Saito ,  Kenichi Hotehama ,  Yoshinori Aoki

IPC分类号： H01M10/0587 ,  H01M4/13 ,  H01M4/48 ,  H01M4/02

CPC分类号： H01M10/0587 ,  H01M4/13 ,  H01M4/131 ,  H01M4/136 ,  H01M4/48 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

摘要： A positive electrode plate (11) includes a current collector (30) and a mixture layer (31) disposed on the current collector (30). The mixture layer (31) has a thin portion (32) with a thickness of less than 200 μm disposed on an inner coil half of the current collector (30) and a thick portion (33) having a larger thickness than the thin portion (32), the thick portion (33) having a yield loop height H measured by a stiffness test of 6 mm

公开(公告)号：US20150132666A1

公开(公告)日：2015-05-14

申请号：US14369925

申请日：2012-12-28

申请人： SANYO Electric Co., Ltd.

发明人： Atsushi Ogata ,  Takeshi Ogasawara ,  Yasufumi Takahashi ,  Motoharu Saito ,  Masaki Hirase ,  Katsunori Yanagida ,  Masahisa Fujimoto

IPC分类号： H01M4/36 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/485 ,  H01M4/131 ,  H01M4/505

CPC分类号： H01M4/366 ,  C01G51/50 ,  C01P2002/76 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0034

摘要： There is provided a positive electrode for a nonaqueous electrolyte secondary battery, the positive electrode being capable of improving the charge-discharge cycle characteristics of the nonaqueous electrolyte secondary battery. A positive electrode 12 of a nonaqueous electrolyte secondary battery 1 contains positive electrode active material particles. The positive electrode active material particles contain a lithium-containing transition metal oxide. The lithium-containing transition metal oxide has a crystal structure that belongs to the space group P63mc. A compound of at least one selected from the group consisting of boron, zirconium, aluminum, magnesium, titanium, and a rare-earth element is attached to surfaces of the positive electrode active material particles.

摘要翻译： 提供一种用于非水电解质二次电池的正极，该正极能够提高非水电解质二次电池的充放电循环特性。 非水电解质二次电池1的正极12含有正极活性物质粒子。 正极活性物质粒子含有含锂过渡金属氧化物。 含锂过渡金属氧化物具有属于空间群P63mc的晶体结构。 选自硼，锆，铝，镁，钛和稀土元素中的至少一种的化合物附着在正极活性物质颗粒的表面上。

公开(公告)号：US20160351901A1

公开(公告)日：2016-12-01

申请号：US15113917

申请日：2015-01-08

申请人： SANYO ELECTRIC CO., LTD.

发明人： Motoharu Saito

IPC分类号： H01M4/525 ,  H01M10/0525

CPC分类号： H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

摘要： A nonagueous electrolyte secondary battery has a positive electrode including a positive electrode active material which contains as a main component a lithium composite oxide containing at least cobalt, the lithium composite oxide having a crystal structure belonging to the space group P63mc and categorized as an O2 structure. The BET specific surface area of the lithium composite oxide is less than 0.6 m2/g. In the nonaqueous electrolyte secondary battery, the charge cutoff potential of the positive electrode is higher than 4.5 V (vs. Li/Li+).

摘要翻译： 非配位电解质二次电池具有含有正极活性物质的正极，该正极活性物质含有至少含有钴的锂复合氧化物作为主要成分，所述锂复合氧化物具有属于空间群P63mc的晶体结构并分类为O 2结构 。 锂复合氧化物的BET比表面积小于0.6m 2 / g。 在非水电解质二次电池中，正极的充电截止电位高于4.5V（相对于Li / Li +）。