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1. WO2022163321 - NON-AQUEOUS ELECTROCHEMICAL ELEMENT

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Publication Number WO/2022/163321
Publication Date 04.08.2022
International Application No. PCT/JP2022/000281
International Filing Date 06.01.2022
IPC
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
H01G 11/38 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
22Electrodes
30characterised by their material
32Carbon-based
38Carbon pastes or blends; Binders or additives therein
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
H01M 4/13 2010.1
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
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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 10/0569 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
CPC
H01G 11/38
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
22Electrodes
30characterised by their materials
32Carbon-based, e.g. activated carbon materials
38Carbon pastes or blends; Binders or additives therein
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
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 10/0569
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
H01M 4/13
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
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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
Applicants
  • 日本ゼオン株式会社 ZEON CORPORATION [JP]/[JP]
Inventors
  • 高橋　直樹 TAKAHASHI Naoki
Agents
  • 杉村　憲司 SUGIMURA Kenji
Priority Data
2021-01386529.01.2021JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) NON-AQUEOUS ELECTROCHEMICAL ELEMENT
(FR) ÉLÉMENT ÉLECTROCHIMIQUE NON AQUEUX
(JA) 非水系電気化学素子
Abstract
(EN) The purpose of the present invention is to provide a non-aqueous electrochemical element having reduced direct current resistance at low temperatures and excellent high-temperature storage characteristics. This electrochemical element comprises a positive electrode, a negative electrode, a separator, and an electrolytic solution. The positive electrode is provided with a positive electrode mixture layer containing a positive electrode active material, a conductive material, and a binder for the positive electrode. The binder for the positive electrode contains a polymer A including a nitrile group-containing monomer unit and an alkylene structure unit. The electrolytic solution contains an ester solvent represented by formula (I), and a non-halogenated carbonate solvent.　Formula (I): R1–C(=O)–O–R2 In formula (I), R1 and R2 represent linear alkyl groups that are respectively independent and have 2 or more carbon atoms.
(FR) Le but de la présente invention est de fournir un élément électrochimique non aqueux ayant une résistance à courant continu réduite à basses températures et d'excellentes caractéristiques de stockage à haute température. Cet élément électrochimique comprend une électrode positive, une électrode négative, un séparateur et une solution électrolytique. L'électrode positive est pourvue d'une couche de mélange d'électrode positive contenant un matériau actif d'électrode positive, un matériau conducteur et un liant pour l'électrode positive. Le liant pour l'électrode positive contient un polymère A comprenant un motif monomère contenant un groupe nitrile et un motif de structure alkylène. La solution électrolytique contient un solvant ester représenté par la formule (I), et un solvant carbonate non halogéné.　Formule (I) : R1–C(=O)–O–R2. Dans la formule (I), R1 et R2 représentent des groupes alkyle linéaires qui sont respectivement indépendants et ont 2 atomes de carbone ou plus.
(JA) 本発明は、低温下での直流抵抗が低減されており、且つ高温保存特性に優れる非水系電気化学素子の提供を目的とする。本発明の電気化学素子は、正極、負極、セパレータ及び電解液を備える。正極は、正極活物質と、導電材と、正極用結着材とを含有する正極合材層を備える。ここで、正極用結着材は、ニトリル基含有単量体単位とアルキレン構造単位を含む重合体Ａを含有する。また電解液は、下記式（Ｉ）で示されるエステル溶媒と、非ハロゲン化カーボネート溶媒とを含有する。　Ｒ１－Ｃ（＝Ｏ）－Ｏ－Ｒ２　・・・　（Ｉ）　式（Ｉ）中、Ｒ１及びＲ２は、それぞれ独立して炭素数２以上の鎖状アルキル基を表す。
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