US2018254446A1PendingUtilityA1
Nonaqueous electrolyte secondary battery separator
Est. expiryMar 3, 2037(~10.6 yrs left)· nominal 20-yr term from priority
Inventors:Kosuke Kurakane
H01M 50/451H01M 50/417H01M 50/414H01M 2004/027H01M 10/052H01M 4/13H01M 2220/30H01M 10/0525H01M 2220/20H01M 2004/028H01M 2/162H01M 50/449H01M 50/46H01M 50/44H01M 50/584H01M 2300/0017H01M 50/491Y02E60/10H01M 50/489
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Claims
Abstract
An embodiment of the present invention provides, as a nonaqueous electrolyte secondary battery separator excellent in cycle characteristic, a nonaqueous electrolyte secondary battery separator including a polyolefin porous film, wherein a ratio of a displacement amount of the nonaqueous electrolyte secondary battery separator at a 10th loading-unloading cycle to a displacement amount of the nonaqueous electrolyte secondary battery separator at a 50th loading-unloading cycle is in a range of 100% to 130%.
Claims
exact text as granted — not AI-modified1 . A nonaqueous electrolyte secondary battery separator comprising a polyolefin porous film, wherein:
a ratio of a displacement amount of the nonaqueous electrolyte secondary battery separator at a 10th loading-unloading cycle to a displacement amount of the nonaqueous electrolyte secondary battery separator at a 50th loading-unloading cycle is in a range of 100% to 130%.
2 . A nonaqueous electrolyte secondary battery laminated separator comprising:
a nonaqueous electrolyte secondary battery separator as set forth in claim 1 ; and an insulating porous layer.
3 . A nonaqueous electrolyte secondary battery member comprising:
a positive electrode; a nonaqueous electrolyte secondary battery separator as set forth in claim 1 ; and a negative electrode, the positive electrode, the nonaqueous electrolyte secondary battery separator, and the negative electrode being disposed in this order.
4 . A nonaqueous electrolyte secondary battery comprising a nonaqueous electrolyte secondary battery separator as set forth in claim 1 .
5 . A nonaqueous electrolyte secondary battery member comprising:
a positive electrode; a nonaqueous electrolyte secondary battery laminated separator as set forth in claim 2 ; and a negative electrode, the positive electrode, the nonaqueous electrolyte secondary battery laminated separator, and the negative electrode being disposed in this order.
6 . A nonaqueous electrolyte secondary battery comprising a nonaqueous electrolyte secondary battery laminated separator as set forth in claim 2 .Join the waitlist — get patent alerts
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