公开(公告)号：US20040191628A1

公开(公告)日：2004-09-30

申请号：US10801655

申请日：2004-03-17

申请人： SANYO ELECTRIC CO., LTD.

发明人： Takao Inoue ,  Masahisa Fujimoto ,  Masaharu Itaya

IPC分类号： H01M004/48 ,  H01M004/52 ,  H01M004/50 ,  C01G045/12 ,  C01G049/04 ,  C01G051/04 ,  C01G053/04

CPC分类号： H01M4/525 ,  C01G45/1228 ,  C01G49/009 ,  C01G51/42 ,  C01G51/66 ,  C01G53/42 ,  C01G53/66 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2006/40 ,  H01M4/0438 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M10/0525

摘要： As a positive electrode active material, a lithium transition metal complex oxide having a layered rock-salt structure containing lithium (Li) and containing magnesium atoms (Mg) substituted for part of lithium atoms (Li) is used. The lithium transition metal complex oxide is formed by chemical or electrochemical substitution of Mg atoms for part of Li atoms in LiCoO2, LiMnO2, LiFeO2, LiNiO2, or the like. A cell is prepared in which a negative electrode 2 and a positive electrode 1 including the lithium transition metal complex oxide (positive electrode active material) are disposed in a non-aqueous electrolyte 5 including a lithium salt, and part of Li in the lithium transition metal complex oxide is extracted by discharging the cell. Then, the electrolyte including Li is replaced with an electrolyte including Mg; and the cell is discharged, so that Mg atoms are substituted for the part of Li atoms in the lithium transition metal complex oxide.

摘要翻译： 作为正极活性物质，使用具有锂（Li）层状岩盐结构并含有镁原子（Mg）取代部分锂原子（Li）的锂过渡金属络合物氧化物。 锂过渡金属复合氧化物通过Mg原子在LiCoO 2，LiMnO 2，LiFeO 2，LiNiO 2等中的部分Li原子的化学或电化学取代而形成。 制备电池，其中将包含锂过渡金属络合物（正极活性物质）的负极2和正极1设置在包含锂盐的非水电解质5中，并且在锂转变中的一部分Li 通过排出电池提取金属复合氧化物。 然后，将包含Li的电解质替换为包含Mg的电解质; 并且电池被放电，使得Mg原子代替锂过渡金属复合氧化物中的部分Li原子。

公开(公告)号：US20040110064A1

公开(公告)日：2004-06-10

申请号：US10604826

申请日：2003-08-20

申请人： SANYO ELECTRIC, CO., LTD.

发明人： Hideki Kitao ,  Takao Inoue ,  Katsunori Yanagida ,  Naoya Nakanishi ,  Atsuhiro Funahashi ,  Toshiyuki Nohma

IPC分类号： H01M004/50 ,  H01M004/52 ,  H01M004/58 ,  H01M004/66 ,  H01M010/40

CPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2004/021 ,  H01M2300/0025

摘要： In a non-aqueous electrolyte secondary battery provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte solution, a positive electrode active material is a mixture of lithium-manganese composite oxide and at least one of lithium-nickel composite oxide represented by a general formula LiNiaM11nullaO2 and lithium-cobalt composite oxide represented by the general formula LiCobM21nullbO2, and said non-aqueous electrolyte solution contains at least a saturated cyclic carbonic acid ester and an unsaturated cyclic carbonic acid ester having double bond of carbon where content by amount of said unsaturated cyclic carbonic acid ester having double bond of carbon is in a range of 1.0null10null8 to 2.4null10null4 g per positive electrode capacity 1 mAh.

摘要翻译： 在具有正极，负极和非水电解质溶液的非水电解质二次电池中，正极活性物质是锂 - 锰复合氧化物与锂 - 镍复合氧化物中的至少一种的混合物 由通式LiNiM 11-aO 2和由通式LiCobM21-bO2表示的锂钴复合氧化物表示，所述非水电解质溶液至少含有饱和环状碳酸酯和具有双键的不饱和环状碳酸酯 碳，其中具有碳双键的所述不饱和环状碳酸酯的含量在每个正极容量为1mAh的1.0×10 -8 -24×10 -4范围内。