Titles:
NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME
리튬 이차전지용 음극, 이의 제조방법 및 이를 포함하는 리튬 이차전지
Abstracts:
The present invention pertains to a negative electrode for a lithium secondary battery, a method for manufacturing same, and a lithium secondary battery including same. More specifically, the negative electrode for a lithium secondary battery according to the present invention has a protective layer containing a three-dimensional structure composed of metal and lithium nitride, and thus uniform ionic conductivity and electrical conductivity can be induced on the surface of the negative electrode.
본 발명은 리튬 이차전지용 음극, 이의 제조방법 및 이를 포함하는 리튬 이차전지에 관한 것이다. 보다 상세하게는, 본 발명에 따른 리튬 이차전지용 음극은 금속과 질화리튬으로 이루어진 3차원 구조체를 포함하는 보호층이 형성되어, 음극의 표면에 균일한 이온 전도도와 전기 전도도를 유도할 수 있다.
Applicants:
LG CHEMICAL LTD [KR] (주식회사 엘지화학)
IUCF HYU [KR] (한양대학교 산학협력단)
Inventors:
PARK EUNKYUNG [KR] (박은경)
JANG MINCHUL [KR] (장민철)
SONG TAESEUP [KR] (송태섭)
SUN SEHO [KR] (선세호)
LEE DONGSOO [KR] (이동수)
SON BYOUNGKUK [KR] (손병국)
Battery core packs employing minimum cell-face pressure containment devices and methods are disclosed for minimizing dendrite growth and increasing cycle life of metal and metal-ion battery cells.
Applicant:
SES HOLDINGS PTE LTD [SG]
Inventors:
NAM YOUNGGYU [US]
JUNG SANGOH [US]
HU QICHAO [US]
MATULEVICH YURY [US]
KING MACKENZIE [US]
SON YONGKYU [US]
FRANCOIS JEFF [US]
HONG JACQUELINE [US]
NIGRO JR ARTHUR R [US]
Other family members:
CN 111640973 A,
Pub. Date: 2020-09-08,
EPO/ Google
Titles:
Three-dimensional structure composite metal lithium negative electrode and preparation method thereof
一种三维结构复合金属锂负极及其制备方法
Abstracts:
The invention relates to the technical field of lithium battery negative electrodes, and discloses a three-dimensional structure composite metal lithium negative electrode and a preparation method thereof. The composite metal lithium negative electrode includes a metal lithium layer and a metal mesh layer. The lower part of the metal mesh layer is inserted into the metal lithium layer and the upper part of the metal mesh layer It passes through the metal lithium layer, and the top of the metal mesh layer is coated with an insulating layer. The present invention has the following advantages and effects: the metal mesh layer penetrated above the metal lithium layer accommodates the elemental lithium deposited by the positive electrode; a three-dimensional carrier with electronic conductivity and no alloying with metal lithium is constructed inside and on the surface of the metal lithium layer (Ie the metal mesh layer), and an insulating layer that does not conduct electron ions is attached to the top surface of the carrier, so that the deposited lithium ions can only get electrons in the metal mesh layer on the surface of the metal lithium layer, not in the metal mesh layer. The top of the electrode gets electrons, so that lithium dendrites and dead lithium exceeding the thickness of the surface metal mesh layer are formed, avoiding the appearance of dendrites on the top of the negative electrode conductor.
