-
公开(公告)号：US10770716B2
公开(公告)日：2020-09-08
申请号：US16308136
申请日：2016-06-08
IPC分类号： H01M4/131 , H01M4/13 , H01M4/133 , H01M4/134 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/056 , H01M10/0566 , H01M10/0567 , H01M10/0569 , H01M10/052 , H01M4/02 , H01M10/42
摘要： A flat stacked type non-aqueous electrolyte secondary battery includes: a positive electrode comprising a a positive electrode active material formed on a surface of a positive electrode current collector, a negative electrode comprising a negative electrode active material formed on a surface of a negative electrode current collector, and an electrolyte layer, wherein a ratio of a rated capacity to a pore volume of the negative electrode active material layer is 1.12 Ah/cc or more, a ratio of a battery area to a rated capacity is 4.0 cm2/Ah or more, and a rated capacity is 30 Ah or more, and the electrolyte layer contains an electrolyte solution containing an electrolyte salt dissolved and a value obtained by dividing a weight of an electrolyte salt in pores in the negative electrode active material layer by a weight of the negative electrode active material is 0.031 or more.
-
公开(公告)号：US11043717B2
公开(公告)日：2021-06-22
申请号：US16308073
申请日：2016-06-08
IPC分类号： H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M4/133 , B32B27/32 , H01M50/116 , H01M50/411 , H01M50/449 , H01M10/052 , H01M50/40 , H01M10/058 , H01M50/403 , H01M50/463 , H01M4/02 , H01M10/42
摘要： A non-aqueous electrolyte secondary battery with improved cycle durability includes a power generating element including a positive electrode obtained by forming a positive electrode active material layer containing a positive electrode active material on a surface of a positive electrode current collector, a negative electrode obtained by forming a negative electrode active material layer containing a negative electrode active material on a surface of a negative electrode current collector, and a separator, a ratio of a rated capacity to a pore volume of the separator being 1.55 Ah/cc or more, a ratio of a battery area to a rated capacity being 4.0 cm2/Ah or more, and a rated capacity being 30 Ah or more, wherein a variation in porosity in the separator is 4.0% or less.
-
公开(公告)号：US10468729B2
公开(公告)日：2019-11-05
申请号：US15109923
申请日：2014-12-08
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.
-
公开(公告)号：US10476110B2
公开(公告)日：2019-11-12
申请号：US16308005
申请日：2016-06-08
IPC分类号： H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0585 , H01M10/42 , H01M10/0525 , H01M4/02
摘要： A non-aqueous electrolyte secondary battery has improved battery durability, a high capacity, a high density, and a large area and includes a power generating element including a positive electrode in which a positive electrode active material layer containing a positive electrode active material is formed on a surface of a positive electrode current collector, a negative electrode in which a negative electrode active material layer containing a negative electrode active material is formed on a surface of a negative electrode current collector, and a separator, a ratio of a rated capacity to a pore volume of the negative electrode active material layer being 1.12 Ah/cc or more, a ratio of a battery area to a rated capacity being 4.0 cm2/Ah or more, and a rated capacity being 30 Ah or more, wherein a variation in porosity in the negative electrode active material layer is 6.0% or less.
-
-
-
搜索结果
4 条记录 (耗时 0.02 秒)
