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1. WO2022026086 - PROPYLENE CARBONATE-BASED ELECTROLYTE FOR LITHIUM ION BATTERIES WITH SILICON-BASED ANODES

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Publication Number WO/2022/026086
Publication Date 03.02.2022
International Application No. PCT/US2021/038356
International Filing Date 22.06.2021
IPC
H01M 4/38 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
36Selection of substances as active materials, active masses, active liquids
38of elements or alloys
H01M 10/0567 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
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0567characterised by the additives
H01M 10/0568 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
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0568characterised by the solutes
H01M 10/0569 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
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0569characterised by the solvents
H01G 11/60 2013.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
11Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer capacitors; Processes for the manufacture thereof or of parts thereof
54Electrolytes
58Liquid electrolytes
60characterised by the solvent
H01G 11/62 2013.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
11Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer capacitors; Processes for the manufacture thereof or of parts thereof
54Electrolytes
58Liquid electrolytes
62characterised by the solute, e.g. salts, anions or cations therein
CPC
H01G 11/60
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
11Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors [EDLCs]; Processes specially adapted for the manufacture thereof or of parts thereof
54Electrolytes
58Liquid electrolytes
60characterised by the solvent
H01G 11/62
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
11Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors [EDLCs]; Processes specially adapted for the manufacture thereof or of parts thereof
54Electrolytes
58Liquid electrolytes
62characterised by the solute, e.g. salts, anions or cations therein
H01G 11/64
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
11Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors [EDLCs]; Processes specially adapted for the manufacture thereof or of parts thereof
54Electrolytes
58Liquid electrolytes
64characterised by additives
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 10/0525
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
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/0567
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
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0567characterised by the additives
Applicants
  • APPLE INC. [US]/[US]
Inventors
  • KIM, Hyea
  • KWON, OuJung
  • SHIN, Woo Cheol
Agents
  • NESTI, Francine B.
  • BASILE, JR., Andrew R.
Priority Data
17/130,08822.12.2020US
63/057,56828.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PROPYLENE CARBONATE-BASED ELECTROLYTE FOR LITHIUM ION BATTERIES WITH SILICON-BASED ANODES
(FR) ÉLECTROLYTE À BASE DE CARBONATE DE PROPYLÈNE DESTINÉ À DES BATTERIES AU LITHIUM-ION AVEC ANODES À BASE DE SILICIUM
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Abstract
(EN) An electrochemical cell has an anode comprising a silicon-based active material, a cathode comprising a cathode active material, and an electrolyte having no ethylene carbonate. The electrolyte comprises a solvent, the solvent being 20 wt% to 50 wt% propylene carbonate with the remainder being a linear solvent, a lithium salt, and less than 15 wt% of one or more additives. The silicon-based anode active material has a specific capacity of ≥ 700 mAh/g.
(FR) La présente invention concerne une cellule électrochimique qui comprend une anode comprenant un matériau actif à base de silicium, une cathode comprenant un matériau actif de cathode, et un électrolyte exempt de carbonate d'éthylène. L'électrolyte comprend un solvant, le solvant étant constitué de 20 % en poids à 50 % en poids de carbonate de propylène, le reste étant un solvant linéaire, un sel de lithium et moins de 15 % en poids d'un ou de plusieurs additifs. Le matériau actif d'anode à base de silicium a une capacité spécifique supérieure ou égale à 700 mAh/g.
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