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1. WO2022255666 - LITHIUM SECONDARY BATTERY CONTAINING POSITIVE ELECTRODE ADDITIVE

Publication Number WO/2022/255666
Publication Date 08.12.2022
International Application No. PCT/KR2022/006461
International Filing Date 06.05.2022
IPC
H01M 4/62 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/052 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
H01M 10/44 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
CPC
H01M 10/052
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
H01M 10/44
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
H01M 4/62
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
Applicants
  • 주식회사 엘지에너지솔루션 LG ENERGY SOLUTION, LTD. [KR]/[KR]
Inventors
  • 김혜현 KIM, Hye Hyeon
  • 오상승 OH, Sang Seung
  • 조치호 JO, Chi Ho
Agents
  • 김홍균 KIM, Hong Gyun
Priority Data
10-2021-007087501.06.2021KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) LITHIUM SECONDARY BATTERY CONTAINING POSITIVE ELECTRODE ADDITIVE
(FR) BATTERIE SECONDAIRE AU LITHIUM CONTENANT UN ADDITIF D'ÉLECTRODE POSITIVE
(KO) 양극 첨가제를 함유하는 리튬 이차전지
Abstract
(EN) The present invention relates to a lithium secondary battery. A positive electrode of the lithium secondary battery is produced so as to contain a positive electrode additive represented by chemical formula 1 as an irreversible additive in a positive electrode mixture layer, and the content of hydrogen and hydrocarbons with respect to the total amount of gas generated during an activation process can be reduced by adjusting the ratio of carbon monoxide and carbon dioxide, generated during the activation process, so as to satisfy a specific range, wherein the ratio is adjusted in accordance with whether or not the positive electrode additive is used. Thus, there is an advantage in that not only can the safety of the lithium secondary battery be improved, but the charge-discharge efficiency of the lithium secondary battery can be enhanced.
(FR) La présente invention concerne une batterie secondaire au lithium. Une électrode positive de la batterie secondaire au lithium est produite de manière à contenir un additif d'électrode positive représenté par la formule chimique (1) en tant qu'additif irréversible dans une couche de mélange d'électrode positive, et la teneur en hydrogène et en hydrocarbures par rapport à la quantité totale de gaz généré pendant un processus d'activation peut être réduite par ajustement du rapport du monoxyde de carbone et du dioxyde de carbone, générés pendant le processus d'activation, de manière à satisfaire une plage spécifique, le rapport étant ajusté conformément à l'utilisation ou non de l'additif d'électrode positive. Ainsi, il est avantageux que non seulement la sécurité de la batterie secondaire au lithium soit améliorée, mais l'efficacité de charge-décharge de la batterie secondaire au lithium peut être améliorée.
(KO) 본 발명은 리튬 이차전지에 관한 것으로, 리튬 이차전지의 양극은 비가역 첨가제로서 양극 합제층에 화학식 1로 나타내는 양극 첨가제를 함유하여 제조되고, 상기 양극 첨가제의 사용 여부에 따라 활성화 공정 시 발생되는 일산화탄소 및 이산화탄소의 비율이 특정 범위를 만족하도록 조절함으로써, 활성화 공정 시 발생되는 총 가스량에 대한 수소 및 탄화수소의 함량을 저감 시킬 수 있어, 리튬 이차전지의 안전성을 개선시킬 수 있을 뿐만 아니라, 리튬 이차전지의 충방전 효율을 향상시킬 수 있는 이점이 있다.
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