发明名称 |
Methods related to X-ray sensitive battery separators |
摘要 |
A method for detecting the position of a separator relative to electrodes in a secondary lithium battery includes the steps of: providing a secondary lithium battery including a positive electrode, a negative electrode, a X-ray sensitive separator located between the electrodes, and a can or pouch housing the electrodes and separator, the X-ray sensitive separator comprising a microporous membrane having a X-ray detectable element dispersed therein or thereon, the X-ray detectable element comprising at least 2 and no greater than 20 weight % of the membrane; subjecting the secondary lithium battery to X-ray radiation; determining the position of the separator relative to the electrodes; and approving or rejecting the secondary lithium battery based upon the position of the separator relative to the electrodes. |
申请公布号 |
US9274068(B2) |
申请公布日期 |
2016.03.01 |
申请号 |
US201514859471 |
申请日期 |
2015.09.21 |
申请人 |
Celgard LLC |
发明人 |
Li Xuefa;Wensley C. Glen;Zhang Zhengming |
分类号 |
G01N23/18;H01M2/16 |
主分类号 |
G01N23/18 |
代理机构 |
Hammer & Associates, P.C. |
代理人 |
Hammer & Associates, P.C. |
主权项 |
1. A method for detecting the position of a separator relative to electrodes in a secondary lithium battery comprising the steps of:
providing a secondary lithium battery including a positive electrode, a negative electrode, a X-ray sensitive separator located between the electrodes, and a can or pouch housing the electrodes and separator, the X-ray sensitive separator comprising a microporous membrane having a X-ray detectable element dispersed therein or thereon, the X-ray detectable element comprising at least 2 and no greater than 20 weight % of the membrane; subjecting the secondary lithium battery to X-ray radiation; determining the position of the separator relative to the electrodes; and approving or rejecting the secondary lithium battery based upon the position of the separator relative to the electrodes. |
地址 |
Charlotte NC US |