公开(公告)号：US10468729B2

公开(公告)日：2019-11-05

申请号：US15109923

申请日：2014-12-08

申请人： Envision AESC Japan Ltd.

发明人： Yuki Kusachi ,  Fumihiro Kawamura ,  Masanori Aoyagi ,  Kousuke Hagiyama

IPC分类号： H01M10/44 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/058 ,  H01M2/16 ,  H01M4/04 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585 ,  H01M10/42 ,  H01M10/04 ,  H01M4/02 ,  H01M10/52

摘要： A method for producing a non-aqueous electrolyte secondary battery including an electrolyte containing an electrolyte salt, a non-aqueous solvent capable of dissolving the electrolyte salt, and plural additives, wherein at least one of the additives has a reduction potential that is nobler than the reduction potential of the non-aqueous solvent. The method includes a first charging step for maintaining battery voltage at a negative electrode potential at which the additive having the noblest reduction potential of the additives is decomposed while the non-aqueous solvent and other additives are not reduced and decomposed and a second charging step for maintaining battery voltage so as to have reduction and decomposition of at least one of the non-aqueous solvents and bring the electrical potential of the negative electrode to at least 0.7 V relative to lithium. By having a uniform reaction in an electrode, a decrease in durability is suppressed.