Titles:
DIFLUOROPHOSPHATE ADDITIVE COMPOUNDS AND METHODS THEREOF FOR USE IN ENERGY STORAGE DEVICES
COMPOSÉS ADDITIFS DE DIFLUOROPHOSPHATE ET LEURS PROCÉDÉS D'UTILISATION DANS DES DISPOSITIFS DE STOCKAGE D'ÉNERGIE
Abstracts:
The present disclosure relates to the synthesis and evaluation of difluorophosphate additives for use in energy storage devices. The difluorophosphate additive may be selected from the group consisting of lithium difluorophosphate (LFO), sodium difluorophosphate (NaFO), ammonium difluorophosphate (AFO), tetramethylammonium difluorophosphate (MAFO), potassium difluorophosphate (KFO), and combinations thereof. In some instances, the difluorophosphate additive is not lithium difluorophosphate (LFO).
La présente divulgation concerne la synthèse et l'évaluation d'additifs de difluorophosphate destinés à être utilisés dans des dispositifs de stockage d'énergie. L'additif de difluorophosphate peut être choisi dans le groupe constitué par le difluorophosphate de lithium (LFO), le difluorophosphate de sodium (NaFO), le difluorophosphate d'ammonium (AFO), le difluorophosphate de tétraméthylammonium (MAFO), le difluorophosphate de potassium (KFO) et des combinaisons de ceux-ci. Dans certains cas, l'additif de difluorophosphate n'est pas le difluorophosphate de lithium (LFO).
Applicant:
TESLA INC [US]
Inventors:
HALL DAVID S [US]
HYNES TOREN [US]
AIKEN CONNOR P [US]
DAHN JEFFERY R [US]
Titles:
SCREENING METHOD OF THE ELECTROLYTE ADDITIVE ELECTROLYTE ADDITIVE FOR SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERY COMPRISING THE SAME
전해질 첨가제의 선별 방법과 이차전지용 전해질 첨가제 및 이를 포함하는 리튬 이차전지용 비수전해액
Abstracts:
The present invention relates to a method for screening an electrolyte additive, an electrolyte additive for a secondary battery, and a non-aqueous electrolyte for a lithium secondary battery comprising the same, specifically (a) having at least two nitrile groups and a weight average molecular weight of 60 g/mol to 200 g/mol, and measuring the minimum distance between nitrile groups of each nitrile-based compound at 0K temperature by screening nitrile-based compounds having a structure represented by the following formula (1); And (b) selecting compounds having a minimum distance between nitrile groups measured in step (a) as an electrolyte additive of greater than 6.55 Å and less than or equal to 10.0 Å; It relates to a non-aqueous electrolyte for a lithium secondary battery.
본 발명은 전해질 첨가제의 선별 방법과 이차전지용 전해질 첨가제 및 이를 포함하는 리튬 이차전지용 비수전해액에 관한 것으로, 구체적으로 (a) 적어도 2개 이상의 나이트릴기를 가지며, 중량평균분자량이 60 g/mol 내지 200 g/mol 이며, 하기 화학식 1로 표시되는 구조를 갖는 나이트릴계 화합물들을 스크리닝하여 0K 온도에서 각각의 나이트릴계 화합들의 나이트릴기 사이의 최소 거리를 측정하는 단계; 및 (b) 상기 (a) 단계에서 측정된 나이트릴기 사이의 최소 거리가 6.55 Å 초과 10.0 Å 이하인 화합물들을 전해질 첨가제로 선택하는 단계;를 포함하는 전해질 첨가제의 선별 방법과 이차전지용 전해질 첨가제 및 이를 포함하는 리튬 이차전지용 비수전해액에 관한 것이다.
Applicant:
LG CHEMICAL LTD [KR] (주식회사 엘지화학)
Inventors:
NOH CHAN WOO (노찬우)
CHOI YOUNG CHEOL (최영철)
KIM KYOUNG HOON (김경훈)
Title:
Electrolyte for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
Abstract:
An electrolyte for a lithium secondary battery according to embodiments of the present invention includes an organic solvent, a lithium salt, and an additive including a cyclic ether-sulfate-based compound. Thereby, cycle characteristics and high-temperature stability of the lithium secondary battery may be improved.
Applicant:
SK INNOVATION CO LTD [KR]
Inventors:
KIM SUNG JIN [KR]
PARK DAI IN [KR]
KIM MYOUNG LAE [KR]
LEE JOO HYUN [KR]
Other family members:
KR 20210110018 A,
Pub. Date: 2021-09-07,
EPO/ Google
