Battery separator and method for manufacturing the same
AssigneeIndustrial Technology Research Institute
InventorsYu Min Peng, Jing-Pin Pan, Tsung-Hsiung Wang, Chang-Rung Yang
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Abstract
The present discloser provides a battery separator, including: a porous hyper-branched polymer which undergoes a closed-pore mechanism at a field effect condition, wherein the field effect condition includes at least one of a temperature being above 150° C., a voltage being 20V, or a current being 6 A; and a porous structure material. The invention also provides a method for manufacturing the battery separator and a secondary battery having the battery separator.
Claims22
A battery separator, comprising:
- a porous hyper-branched polymer which undergoes a closed-pore mechanism at a field effect condition, wherein the field effect condition includes at least one of a temperature being above 150° C., a voltage being 20V, or a current being 6 A;
- and
- a porous structure material.
A method for manufacturing a battery separator, comprising:
- providing a porous structure film;
- and
- coating a porous hyper-branched polymer onto the porous structure film to form a battery separator, wherein the battery separator comprises the porous hyper-branched polymer undergoing a closed-pore mechanism at a field effect condition, wherein the field effect condition includes at least one of a temperature being above 150° C., a voltage being 20V, or a current being 6 A.
A method for manufacturing a battery separator, comprising:
- mixing a porous structure material and a porous hyper-branched polymer to form a mixture;
- and
- subjecting the mixture to a dry or wet process to form a battery separator, wherein the battery separator comprises the porous hyper-branched polymer undergoing a closed-pore mechanism at a field effect condition, wherein the field effect condition includes at least one of a temperature being above 150° C., a voltage being 20V, or a current being 6 A.
Dependencies are inferred from the claim text.