Titles:
BINDER FOR MANUFACTURING CATHODE OF LITHIUM-SULFUR SECONDARY BATTERY, AND METHOD FOR MANUFACTURING CATHODE BY USING SAME
리튬-황 이차전지의 양극 제조용 바인더 및 이를 사용한 양극의 제조방법
Abstracts:
The present invention provides a binder for manufacturing a cathode of a lithium-sulfur secondary battery, comprising an acrylic polymer comprising an acrylic monomer polymerization unit, a non-acrylic monomer polymerization unit and a redox monomer polymerization unit. The acrylic polymer comprises 30 wt% or more of the acrylic monomer polymerization unit. In addition, the present invention provides a cathode active layer, a cathode and a lithium-sulfur secondary battery, which are manufactured using the binder.
본 발명은 아크릴계 단량체 중합 단위, 비아크릴계 단량체 중합 단위 및 산화 환원성 단량체 중합 단위를 포함한 아크릴계 고분자를 포함하는 리튬-황 이차전지의 양극 제조용 바인더를 제공한다. 상기 아크릴계 고분자는 아크릴계 단량체 중합 단위를 30 중량% 이상 포함한다. 또한, 본 발명은 상기 바인더를 사용하여 제조된 양극 활성층, 양극 및 리튬-황 이차전지를 제공한다.
Applicant:
LG CHEMICAL LTD [KR] (주식회사 엘지화학)
Inventors:
KIM KYUNG OH [KR] (김경오)
LEE CHOONGHYEON [KR] (이충현)
YOON JEONGAE [KR] (윤정애)
KWON SUJEE [KR] (권수지)
YANG DOO KYUNG [KR] (양두경)
YOON SUNG SOO [KR] (윤성수)
Other family members:
KR 20190011943 A,
Pub. Date: 2019-02-08,
EPO Reference
Titles:
Lithium metal battery electrolyte and lithium metal battery and lithium sulfur battery
种锂金属电池电解液及锂金属电池和锂硫电池
Abstracts:
In order to improve the cycle performance of the battery, the present invention describes a lithium metal battery electrolyte and a lithium metal battery and a lithium sulfur battery, a lithium metal battery electrolyte, including a solvent and a lithium salt, the lithium salt including a lithium salt I, a lithium salt II, lithium salt III, the mass percentage of each component in the electrolyte is: solvent 40% ~ 85%, lithium salt I10% ~ 50%, lithium salt II 0.1% ~ 3%, lithium salt III0. 1% to 10%, the solvent is any combination of an organic heterocyclic compound containing an oxygen group element on the ring, the lithium salt I is lithium bistrifluoromethanesulfonimide (LiTFSI), and the lithium salt II is Lithium nitrate (LiNO), the lithium salt III is a combination of one or more of a boron-containing lithium salt and a phosphorus-containing lithium salt; a lithium metal battery comprising: a positive electrode, a lithium-containing negative electrode, a separator, and the above electrolyte The invention relates to a lithium-sulfur battery, comprising: a sulfur-containing positive electrode, a lithium-containing negative electrode, a separator and the above electrolyte; the invention belongs to the field of lithium ion batteries, and improves the cycle performance of the lithium-sulfur battery.
