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1. WO2020007425 - ELECTROLYTE COMPRISING A PHOSPITE AS AN ADDITIVE OR CO-SOLVENT, LITHIUM RECHARGEABLE BATTERY COMPRISING SAID ELECTROLYTE, AND METHOD FOR PRODUCING THE PHOSPHITE

Publication Number WO/2020/007425
Publication Date 09.01.2020
International Application No. PCT/DE2019/200071
International Filing Date 05.07.2019
IPC
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
6
Primary cells; Manufacture thereof
14
Cells with non-aqueous electrolyte
16
with organic electrolyte
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
052
Li-accumulators
0525
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
056
characterized by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564
the electrolyte being constituted of organic materials only
0566
Liquid materials
0567
characterised by the additives
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
056
characterized by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564
the electrolyte being constituted of organic materials only
0566
Liquid materials
0568
characterised by the solutes
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
056
characterized by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564
the electrolyte being constituted of organic materials only
0566
Liquid materials
0569
characterised by the solvents
H01M 6/16 (2006.01)
H01M 10/0525 (2010.01)
H01M 10/0567 (2010.01)
H01M 10/0568 (2010.01)
H01M 10/0569 (2010.01)
CPC
H01M 10/0525
H01M 10/0567
H01M 10/0568
H01M 10/0569
H01M 6/16
Applicants
  • FORSCHUNGSZENTRUM JÜLICH GMBH [DE/DE]; Leo-Brandt-Straße 52428 Jülich, DE
  • JACOBS UNIVERSITY BREMEN GGMBH [DE/DE]; Campus Ring 1 28759 Bremen, DE
Inventors
  • KOZEL, Volodymyr; DE
  • VON ASPERN, Natascha; DE
  • RÖSCHENTHALER, Gerd-Volker; DE
  • WINTER, Martin; DE
  • STUBBMANN-KAZAKOVA, Olesya; DE
  • CEKIC-LASKOVIC, Isidora; DE
  • WÖLKE, Christian; DE
Agents
  • WEIDNER STERN JESCHKE PATENTANWÄLTE PARTNERSCHAFT MBB; Arnstädter Str. 50 99096 Erfurt, DE
Priority Data
10 2018 116 475.006.07.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) ELEKTROLYT MIT EINEM PHOSPHIT ALS ADDITIV ODER CO-LÖSEMITTEL, LITHIUM-SEKUNDÄRBATTERIE MIT DIESEM ELEKTROLYTEN UND VERFAHREN ZUR HERSTELLUNG DES PHOSPHITS
(EN) ELECTROLYTE COMPRISING A PHOSPITE AS AN ADDITIVE OR CO-SOLVENT, LITHIUM RECHARGEABLE BATTERY COMPRISING SAID ELECTROLYTE, AND METHOD FOR PRODUCING THE PHOSPHITE
(FR) ÉLECTROLYTE POURVU D'UN PHOSPHITE COMME ADDITIF OU CO-SOLVANT, BATTERIE SECONDAIRE AU LITHIUM POURVUE DE CET ÉLECTROLYTE, ET PROCÉDÉ DE PRODUCTION DU PHOSPHITE
Abstract
(DE)
Die Erfindung betrifft einen Elektrolyten, umfassend: wenigstens ein Lithiumsalz; wenigstens ein erstes und ein zweites organisches Lösemittel, wobei das erste organische Lösemittel eine Dielektrizitätskonstante von mehr als 90 (bei 40°C) aufweist und das zweite organische Lösemittel einen Siedepunkt von unter 110°C aufweist; und wenigstens ein Phosphit der Formel (I) wobei R1 eine n-Propoxygruppe, eine iso-Propoxygruppe, eine tert-Butoxygruppe, eine n-Pentafluorpropoxygruppe, eine n-Trifluorpropoxygruppe, eine iso-Hexafluoropropoxygruppe oder eine tert-Nonafluorbutoxygruppe ist und R2, R3, R4 und R unabhängig voneinander ausgewählt sind aus H, einer Trifluormethylgruppe oder einer C2-C6-Alkylgruppe, welche mit einer Trifluormethylgruppe substituiert ist. Des Weiteren betrifft die Erfindung die Verwendung eines Elektrolyten mit einem Phosphit der Formel (I) und eine Lithium-Sekundärbatterie mit diesem Elektrolyten.
(EN)
The invention relates to an electrolyte, comprising: at least one lithium salt; at least one first and one second organic solvent, the first organic solvent having a dielectric constant of more than 90 (at 40°C), and the second organic solvent having a boiling point of below 110°C; and at least one phosphite of formula (I), where R1 is a n-propoxy group, an iso-propoxy group, a tert-butoxy group, an n-pentafluoropropoxy group, an n-trifluoropropoxy group, an iso-hexafluoropropoxy group, or a tert-nonafluorobutoxy group, and R2, R3, R4 and R independently of one another, are selected from among H, a trifluoromethyl group, or a C2-C6-alkyl group which is substituted by a trifluoromethyl group. The invention also relates to the use of an electrolyte comprising a phosphite of formula (I), and to a lithium rechargeable battery comprising said electrolyte.
(FR)
L'invention concerne un électrolyte comprenant : au moins un sel de lithium; au moins un premier et un deuxième solvant organique, le premier solvant organique ayant une constante diélectrique supérieure à 90 (à 40°C) et le deuxième solvant organique ayant un point d'ébullition inférieur à 110°C; et au moins un phosphite de formule (I) dans laquelle R1 est un groupe n-propoxy, un groupe iso-propoxy, un groupe tert--butoxy, un groupe n-pentafluoropropoxy, un groupe n-trifluoropropoxy, un groupe iso-hexafluoropropoxy ou un groupe tert-nonafluorobutoxy, et R2, R3, R4 et R étant indépendamment choisis parmi H, un groupe trifluorométhyle ou un groupe C2 -C6-alkyle substitué par un groupe trifluorométhyle. De plus, l'invention concerne l'utilisation d'un électrolyte avec un phosphite de la formule (I) et une batterie secondaire au lithium pourvue de cet électrolyte.
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