Titles:
METHOD FOR PREPARING LITHIUM METAL ELECTRODE LITHIUM METAL ELECTRODE PREPARED BY THE SAME AND LITHIUM SECONDARYBATTERY INCLUDING THE SAME
리튬 금속 전극의 제조방법, 이에 의해 제조된 리튬 금속 전극, 및 이를 포함하는 리튬 이차 전지
Abstracts:
The present invention relates to a method for manufacturing a lithium metal electrode, a lithium metal electrode prepared thereby, and a lithium metal electrode comprising the same, and more particularly, (a) applying fluoroethylene carbonate on at least one surface of a lithium metal layer step; and (b) rolling the lithium metal layer coated with the fluoroethylene carbonate to form a lithium fluoride protective layer on at least one surface of the lithium metal layer.
본 발명은 리튬 금속 전극의 제조방법, 이에 의해 제조된 리튬 금속 전극, 및 이를 포함하는 리튬 금속 전극에 관한 것으로, 보다 상세하게는 (a) 리튬 금속층의 적어도 일면 상에 플루오로에틸렌카보네이트를 도포하는 단계; 및 (b) 상기 플루오로에틸렌카보네이트가 도포된 리튬 금속층을 압연하여 상기 리튬 금속층의 적어도 일면 상에 리튬 플로라이드 보호층을 형성하는 단계를 포함하는 리튬 금속 전극의 제조방법에 관한 것이다.
Applicant:
LG ENERGY SOLUTION LTD [KR] (주식회사 엘지에너지솔루션)
Inventors:
KIM MYEONG SEONG (김명성)
KIM SOO HYUN (김수현)
KIM KI HYUN (김기현)
LEE KEON JE (이건제)
This lithium secondary battery is provided with: a positive electrode in which lithium ions are occluded during discharging and lithium ions are discharged during charging; a negative electrode in which lithium metal is deposited during discharging and lithium metal is dissolved during discharging; and a non-aqueous electrolyte having lithium ion conductivity. The surface of the negative electrode is covered by a protection layer. The protection layer includes a resin material and inorganic particles. The density of the inorganic particles is 6 g/cm3 or more.
The present invention relates generally to lithium batteries, and more specifically, to electrolyte compositions within lithium batteries. Some aspects of the invention are related to an electrolyte for a lithium battery. In some embodiments, the electrolyte comprises a lithium salt, an organic solvent, and an aromatic hydrocarbon solvent that is different from the organic solvent. The aromatic hydrocarbon solvent may have limited solubility in the organic solvent and/or a limited solubility for lithium salt, e.g., such that the aromatic hydrocarbon solvent is capable of inducing phase separation of the electrolyte when present in a certain amount. In one set of embodiments, an electrolyte comprising one or more aromatic hydrocarbon may lead to an enhanced battery cycle life, reduced rate of electrolyte degradation, and improved low temperature performance. The subject matter disclosed herein involves, in some cases, the use of the electrolyte in a lithium battery.
Applicant:
SION POWER CORP [US]
Inventors:
MIKHAYLIK YURIY V [US]
KOVALEV IGOR P [US]
SHEFFIELD ALEXIS [US]
Other family members:
WO 2022081325 A1,
Pub. Date: 2022-04-21,
EPO/ Google
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