公开(公告)号：US08801810B1

公开(公告)日：2014-08-12

申请号：US12944572

申请日：2010-11-11

申请人： Yi Cui ,  Eugene M. Berdichevsky ,  Graeme R. Hoste ,  Rainer J. Fasching ,  Song Han ,  Mark C. Platshon

发明人： Yi Cui ,  Eugene M. Berdichevsky ,  Graeme R. Hoste ,  Rainer J. Fasching ,  Song Han ,  Mark C. Platshon

IPC分类号： H01M10/058 ,  H01M10/44

CPC分类号： H01M10/446 ,  H01M4/0447 ,  H01M4/134 ,  H01M4/386 ,  H01M10/0525 ,  H01M10/0587 ,  Y10T29/49108

摘要： Provided are methods of preparing a lithium ion cell including forming the cell by charging the lithium ion cell to at least about 5% or, more specifically, to at least about 20% of the theoretical capacity of the negative electrode electrochemically active material, holding the lithium ion cell in a charged state for at least about 0.5 hours, and discharging the lithium ion cell. Holding the lithium ion cell in a partially charged state is believed to significantly improve its Coulombic efficiency during subsequent cycling.

摘要翻译： 提供了制备锂离子电池的方法，包括通过将锂离子电池充电至负电极电化学活性材料的理论容量的至少约5％，或更具体地至少约20％来形成电池， 锂离子电池处于充电状态至少约0.5小时，并且放电锂离子电池。 认为在部分充电状态下保持锂离子电池在随后的循环期间显着提高其库仑效率。