Porous Polymer for Hosting Lithium Negative Electrode and Lithium Secondary Battery Comprising the Same

The present invention relates to a porous polymer membrane for a lithium negative electrode host, a method for manufacturing the same, and a lithium secondary battery comprising the same. The porous polymer membrane is lithium-friendly, has high strength, and has an appropriate range of tortuosity,...

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Bibliographic Details
Main Authors KIM TAEK GYOUNG, YANG DOO KYUNG, KOH DONG WOOK
Format Patent
LanguageEnglish
Korean
Published 10.06.2019
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The present invention relates to a porous polymer membrane for a lithium negative electrode host, a method for manufacturing the same, and a lithium secondary battery comprising the same. The porous polymer membrane is lithium-friendly, has high strength, and has an appropriate range of tortuosity, thereby preventing the lithium negative electrode from expanding in volume by the lithium dendrite growth to enhance the lifetime of the battery. 본 발명은 리튬 음극 호스트용 다공성 고분자 막, 이의 제조방법 및 이를 포함하는 리튬 이차전지에 관한 것으로, 상기 다공성 고분자 막은 리튬 친화적이면서도 강도가 높고 적정 범위의 굴곡률(tortuosity)을 가져 리튬 덴드라이트 성장에 의한 리튬 음극의 부피 팽창을 방지하여 전지의 수명을 향상시킬 수 있다.
Bibliography:Application Number: KR20170163569