WO2020149199A1 - Batterie secondaire - Google Patents

Batterie secondaire Download PDF

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Publication number
WO2020149199A1
WO2020149199A1 PCT/JP2020/000364 JP2020000364W WO2020149199A1 WO 2020149199 A1 WO2020149199 A1 WO 2020149199A1 JP 2020000364 W JP2020000364 W JP 2020000364W WO 2020149199 A1 WO2020149199 A1 WO 2020149199A1
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WO
WIPO (PCT)
Prior art keywords
electrolytic solution
secondary battery
negative electrode
lithium
positive electrode
Prior art date
Application number
PCT/JP2020/000364
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English (en)
Japanese (ja)
Inventor
湯山　佳菜子
孝将 荒木
慎悟 安藤
邦宏 満屋
Original Assignee
日清紡ホールディングス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日清紡ホールディングス株式会社 filed Critical 日清紡ホールディングス株式会社
Publication of WO2020149199A1 publication Critical patent/WO2020149199A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H01M10/0567—Liquid materials characterised by the additives
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a secondary battery.
  • non-aqueous electrolyte storage devices have been used in a wide range of applications such as mobile batteries for electric vehicles and mobile phones, smart city markets, etc. With the spread of their applications, non-aqueous electrolyte storage devices have high energy density. It has been demanded.
  • an electric double layer capacitor that uses an electric double layer formed by immersing a carbonaceous electrode in an electrolytic solution so that charges are arranged in layers at the electrode interface;
  • a positive electrode such as a lithium cobalt composite oxide, and a carbon material.
  • a lithium ion secondary battery comprising a negative electrode and a non-aqueous electrolyte solution obtained by dissolving a lithium salt in a non-aqueous solvent; a carbon material is used for the positive and negative electrodes, and the anions in the non-aqueous electrolyte solution are charged to the positive electrode during charging,
  • DCB dual carbon battery
  • a nonconductive film is formed at the interface between the electrode and the electrolytic solution by decomposition of the electrolytic solution.
  • this SEI film has a role of facilitating insertion and desorption of lithium ions liberated in the electrolytic solution and electric conduction in the SEI film itself.
  • it since it has lithium ion conductivity, it is said that it contributes to the performance improvement by suppressing further decomposition of the electrolytic solution each time charging and discharging.
  • Patent Document 1 discloses an electrolytic solution using an additive of the first compound group containing bis(oxalato)borate and an additive of the second compound group containing difluorophosphate.
  • gas generation is suppressed, high temperature durability is improved, and output characteristics are improved by suppressing an increase in internal resistance.
  • Patent Document 2 a secondary battery using a non-aqueous electrolyte containing vinylene carbonate and an oxalato complex salt is aged in an environment of 40 to 60° C., and as a result, a stable SEI film is formed on the negative electrode surface. It has been shown that increase in internal resistance is suppressed under high temperature environment.
  • Patent Document 3 by using a non-aqueous electrolytic solution containing a predetermined phosphorus compound and a predetermined phosphoric acid diester compound, a film is formed on the surface of the electrode active material, and due to effects such as thermal stability and film quality, It is disclosed that a secondary battery can be obtained in which the charge/discharge characteristics after storage in a load environment are not deteriorated and the internal resistance is less increased.
  • Patent Document 4 after aging treatment of a battery obtained by impregnating an electrode body with a first non-aqueous electrolyte solution, at least a part of the first non-aqueous electrolyte solution is removed from the electrode body, and By impregnating the non-aqueous electrolyte of the lithium secondary battery due to deterioration of the non-aqueous electrolyte during aging treatment and improving output reduction, excellent cycle characteristics, large capacity, high output It is disclosed that a lithium ion secondary battery can be obtained.
  • the SEI film causes an increase in the internal resistance of the battery cell due to an increase in the thickness thereof, and causes a decomposition reaction of the electrolytic solution when the thickness is thin, which may be a factor that adversely affects the battery performance.
  • the material forming the SEI film is decomposed by charging and discharging, so unless it is added in an appropriate amount, decomposition continuously occurs at each charging and discharging, promoting deterioration of the electrolyte and solvent, and decomposition products. Is accumulated in the opposite electrode, which causes an increase in internal resistance and a decrease in capacity.
  • the formed SEI coating may be repeatedly charged and discharged in a high temperature environment, so that the coating itself may be decomposed or its stability may be deteriorated, resulting in a decrease in battery cell capacity and an increase in internal resistance. There is also.
  • the discharge capacity is defined as the anion storage amount of the positive electrode, the anion releasable amount of the positive electrode, the cation storage amount of the negative electrode, the cation releaseable amount of the negative electrode, the anion amount in the non-aqueous electrolyte, Determined by the amount of cations.
  • the means for increasing the discharge capacity of DCB it is conceivable to increase the working voltage.
  • the non-aqueous electrolyte decomposes when it is charged to the high voltage region, the electrolyte will not decompose in endurance tests in high temperature and high voltage regions, and cycle tests where charging and discharging are continuously performed in the high voltage region.
  • the present invention has been made in view of the above circumstances, and an object thereof is to provide a secondary battery in which a decrease in capacity and an increase in resistance under a high temperature environment are suppressed.
  • the present inventors have performed a predetermined treatment using a first electrolytic solution containing a phosphorus compound, and then removing it to perform a second electrolysis containing a boron compound.
  • a predetermined treatment using a first electrolytic solution containing a phosphorus compound, and then removing it to perform a second electrolysis containing a boron compound.
  • the secondary battery obtained by performing charge/discharge treatment using a liquid has the characteristics that the capacity decrease in a high temperature environment is suppressed and the resistance increase is suppressed, and completed the present invention. ..
  • the present invention is 1.
  • a separator that separates these positive and negative electrodes, and a process of lowering the potential of the negative electrode is performed using a first electrolytic solution made of a non-aqueous electrolytic solution containing a phosphorus compound.
  • the secondary battery is characterized in that charge and discharge treatment is further performed with a second electrolytic solution made of a non-aqueous electrolytic solution containing a boron compound.
  • the phosphine is a secondary battery of 2 represented by the following formula (1), (In the formula, n represents an integer of 1 to 10.) 4. 3.
  • the secondary battery of the present invention after forming the SEI film with the first electrolytic solution containing a phosphorus compound, by removing the excess electrolytic solution, the solvent due to the additive remaining in the excess electrolytic solution during the subsequent charge and discharge, in addition to suppressing the degradation of the cell performance by suppressing the decomposition of the electrolyte salt, by charging and discharging after replacing the second electrolytic solution containing a boron compound, to suppress the release of lithium from the negative electrode at high temperatures, internal An SEI film that is effective in suppressing the increase in resistance is formed.
  • the secondary battery of the present invention having such an SEI film suppresses a decrease in capacity and an increase in resistance under a high temperature environment, and in particular, has an effect of suppressing an increase in resistance in a low frequency region during a high temperature durability test. .. Further, the secondary battery of the present invention has an advantage that gas generation due to charge and discharge is reduced because side reactions at the positive electrode are suppressed.
  • the secondary battery according to the present invention has an electrolytic solution, a positive electrode containing a positive electrode active material capable of inserting or desorbing anions in the electrolytic solution, and a cation in the electrolytic solution.
  • a negative electrode containing a possible negative electrode active material, and a separator for isolating these positive and negative electrodes, and a process of lowering the potential of the negative electrode is performed using a first electrolytic solution made of a non-aqueous electrolytic solution containing a phosphorus compound, After this treatment, a charging/discharging treatment with a second electrolytic solution composed of a non-aqueous electrolytic solution containing a boron compound is further performed in a state where the first electrolytic solution is removed.
  • the electrolytic solution contains a solvent, an electrolyte salt, and an additive composed of a phosphorus compound or a boron compound.
  • the solvent used for the electrolytic solution is not particularly limited as long as it is a non-aqueous solvent, but an aprotic solvent is preferable.
  • aprotic solvent a solvent having a high solubility of an electrolyte salt, a wide potential window, a high electric conductivity, a high relative dielectric constant and a low viscosity is preferable, and particularly, a plurality of non-aqueous solvents having these characteristics are preferable. It is preferable to use a mixture of solvents.
  • non-aqueous solvent examples include dibutyl ether, 1,2-dimethoxyethane, 1,2-ethoxymethoxyethane, methyl diglyme, methyl triglyme, methyl tetraglyme, ethyl glyme, ethyl diglyme, butyl diglyme, Chain ethers such as ethyl cellosolve, ethyl carbitol, butyl cellosolve, butyl carbitol; heterocycles such as tetrahydrofuran, 2-methyltetrahydrofuran, 1,3-dioxolane, 4,4-dimethyl-1,3-dioxane Formula ethers; lactones such as ⁇ -butyrolactone, ⁇ -valerolactone, ⁇ -valerolactone, 3-methyl-1,3-oxazolidin-2-one, 3-ethyl-1,3-oxazolidin-2-one; Amides such as
  • carbonic acid esters such as chain carbonic acid ester and cyclic carbonic acid ester are preferable as the non-aqueous solvent used in the present invention.
  • chain ethers such as 1,2-dimethoxyethane, cyclic sulfonates such as 1,3-propanesultone, chain sulfones such as ethylmethylsulfone, cyclic sulfones such as sulfolane, and ⁇ -It may contain a lactone such as butyrolactone.
  • the electrolyte salt used in the present invention preferably contains a lithium salt.
  • the lithium salt is preferably a salt that can be dissolved in the above-mentioned non-aqueous solvent at a high concentration, has a low viscosity when dissolved, and has a high ionic conductivity.
  • Specific examples of the lithium salt include lithium hexafluorophosphate (LiPF 6 ), lithium trifluoromethanesulfonate (LiCF 3 SO 3 ), lithium bistrifluoromethylsulfonylimide (LiN(CF 3 SO 2 ) 2 ), and lithium bis.
  • Pentafluoroethylsulfonylimide LiN(C 2 F 5 SO 2 ) 2
  • lithium fluorosulfonylimide Li(SO 2 F) 2
  • lithium tetrafluoroborate LiBF 4
  • lithium hexafluoroarsenide LiAsF
  • LiClO 4 lithium perchlorate
  • LiCl lithium chloride
  • lithium xalatoborate (LiB(C 2 O 4 ) 2 ) and lithium difluoro(oxalato)borate (LiF 2 BC 2 O 4 ) which are additives of the second electrolytic solution described later can also be used.
  • the concentration of the electrolyte salt in the electrolytic solution is not particularly limited, but is preferably about 0.5 to 5.0 mol/L considering the capacity and output characteristics of the battery, and 1 considering the performance such as internal resistance and durability test. More preferably, it is 0.5 to 4.0 mol/L.
  • a process of lowering the potential of the negative electrode by the first electrolytic solution (hereinafter, referred to as potential lowering process) is performed.
  • potential lowering process a process of lowering the negative electrode potential by pre-doping lithium into the negative electrode via an electrolytic solution by short-circuiting the metal lithium and the negative electrode previously arranged in the cell system, or by a charging/discharging device
  • a method of forcibly lowering the negative electrode potential by cell charging is performed in a room temperature (about 25° C.) environment.
  • the first electrolytic solution used for the potential reduction treatment contains, in addition to the above-mentioned non-aqueous solvent and electrolyte salt, phosphorus which is an additive capable of forming an SEI film by decomposing the electrolytic solution at the interface between the electrode and the electrolytic solution.
  • the compound is included.
  • the phosphorus compound is not particularly limited, but phosphoric acid compounds and phosphines are preferable.
  • the phosphine may be a monophosphine compound or a diphosphine compound.
  • Examples of the monophosphine compound include trialkylphosphine, triarylphosphine, dialkylarylphosphine and diarylalkylphosphine, and specific examples thereof include trimethylphosphine, tri-n-butylphosphine, tri-t-butylphosphine and tricyclohexyl. Examples thereof include phosphine, triphenylphosphine, dimethylphenylphosphine and methyldiphenylphosphine.
  • diphosphine compound those represented by the following formula (1) are preferable.
  • n represents an integer of 1 to 10, preferably 1 to 5.
  • diphosphine compound represented by the formula (1) examples include 1,1-bis(diphenylphosphino)methane, 1,2-bis(diphenylphosphino)ethane and 1,3-bis(diphenylphosphino). Examples thereof include propane and 1,4-bis(diphenylphosphino)butane. Further, 1,2-bis(diphenylphosphino)benzene or the like can be used as the diphosphine compound.
  • the diphosphine compound represented by the above formula (1) is preferable as the phosphorus compound used in the first electrolytic solution, and 1,2-bis(diphenylphosphino)ethane and 1,4-bis(diphenylphosphine) are preferred. Fino)butane is more preferred.
  • the concentration of the phosphorus compound in the first electrolytic solution is not particularly limited, but the electrolyte contained in the first electrolytic solution, the non-aqueous solvent, the phosphorus compound is the decomposition of the electrolytic solution accompanying the decrease in the potential of the negative electrode. Considering that the reaction promotes the effective formation of the SEI film, it is preferably about 0.01 to 5 mol/L, more preferably 0.01 to 2 mol/L.
  • the phosphorus compound additive forms an effective SEI film, but if excess phosphorus compound remains in the electrolytic solution, decomposition and degradation of the electrolytic solution will occur with charge and discharge in a durability test conducted in a high temperature environment. It is accelerated and leads to a significant decrease in battery performance. Therefore, in the present invention, the first electrolytic solution is extracted after the SEI film is formed by the potential lowering treatment.
  • charge/discharge treatment is performed with a second electrolytic solution that is a non-aqueous electrolytic solution containing a boron compound. That is, the SEI film is formed by lowering the potential of the negative electrode using the first electrolytic solution containing a phosphorus compound, and the first electrolytic solution is removed, and then the second electrolytic solution containing a boron compound is used for charge/discharge.
  • the boron compound reacts with cations such as lithium and decomposes, and a good-quality SEI film is formed on the electrode interface.
  • this SEI film suppresses direct contact between the active material in a charged state and the non-aqueous solvent, and contributes to suppression of decomposition. Further, the SEI film formed by the two additives suppresses the release of cations such as lithium from the negative electrode during the high temperature durability test, and can suppress the capacity decrease and the resistance increase of the secondary battery.
  • the second electrolytic solution preferably does not contain the phosphorus compound used in the first electrolytic solution.
  • a boric acid compound is preferable, and lithium difluoro(oxalato)borate (LiF 2 BC 2 O 4 ) and lithium bisoxalatoborate (LiB(C 2 O 4 ) 2 ) are used. Lithium difluoro(oxalato)borate (LiF 2 BC 2 O 4 ) is more preferable. Since lithium difluoro(oxalato)borate is a salt containing lithium ions, it can also contribute as an electrolyte salt.
  • the concentration of the boron compound in the second electrolytic solution is not particularly limited, but is preferably 0.01 to 1 mol/L, more preferably 0.05 to 0.5 mol/L.
  • the positive electrode of the secondary battery of the present invention has a positive electrode current collector and a positive electrode material layer formed thereon.
  • the positive electrode current collector include aluminum foil, aluminum alloy foil, and the like, and a three-dimensional porous body such as a foam or a non-woven fabric thereof can also be used as the current collector.
  • the positive electrode material contains at least a positive electrode active material, and if necessary, contains a conductive auxiliary agent, a binder, a thickener, and the like.
  • the positive electrode active material is not particularly limited as long as it is a material capable of storing and releasing anions in the electrolytic solution, and examples thereof include carbon materials such as natural graphite, artificial graphite and graphitizable carbon, and LiMPO 4 (M is Fe).
  • the carbon material preferably has high crystallinity for the purpose of high capacity, and has low crystallinity for the purpose of high-current charging/discharging.
  • the negative electrode has a negative electrode current collector and a negative electrode material layer formed thereon.
  • the negative electrode current collector include copper foil, copper alloy foil, nickel foil, nickel alloy foil, stainless steel foil, aluminum foil, aluminum alloy foil and the like.
  • the negative electrode material contains at least a negative electrode active material, and optionally contains a conductive auxiliary agent, a binder, a thickener, and the like.
  • the negative electrode active material is not particularly limited as long as it is a material capable of occluding and releasing cations in the electrolytic solution, and is a carbon material such as natural graphite, artificial graphite, easily graphitizable carbon, non-graphitizable carbon, silicon oxide, Silicon alloys, tin oxides, tin alloys, lithium titanate, elemental lithium, metals capable of forming lithium alloys, such as aluminum, lead, tin, indium, bismuth, silver, barium, calcium, mercury, palladium, platinum. , Tellurium, zinc, lanthanum, etc., but a carbon material is preferable in the secondary battery of the present invention.
  • the carbon material for example, those having high crystallinity are preferable for the purpose of high capacity, and those having low crystallinity are preferable for the purpose of large-current charge/discharge.
  • the conductive additive used as needed include metal powders such as copper, aluminum and nickel, carbon materials such as carbon black, carbon nanotubes and carbon fibers. These may be used alone or in combination of two or more.
  • the binder and the thickener are not particularly limited as long as they are stable to the solvent and the electrolytic solution at the time of preparing the slurry, and include, for example, carboxymethyl cellulose, styrene butadiene copolymer, polyacrylic acid, polyvinylidene fluoride (PVdF), Examples thereof include polytetrafluoroethylene (PTFE) and polyvinyl alcohol (PVA). These may be used alone or in combination of two or more.
  • the separator is arranged in order to prevent a short circuit between the positive electrode and the negative electrode and improve the retention of the electrolytic solution between the positive and negative electrodes, and there is no particular limitation on the material, shape, thickness or the like.
  • Specific examples of the separator include polyolefin separators such as polyethylene and polypropylene, polyester separators such as polyethylene terephthalate, polyamide separators, polyimide separators, cellulose separators and glass fiber separators. From the viewpoint of electrolyte retention, it is preferable that the porosity is high.
  • a separator having a large thickness and a high airtightness is preferable. In order to make both properties compatible, a separator having a porosity of about 50 to 80% and a thickness of about 10 to 50 ⁇ m is preferable.
  • the secondary battery of the present invention includes, for example, a battery structure in which a separator is interposed between a positive electrode and a negative electrode, stacked, folded, or wound, and if necessary, formed into a coin shape or the like.
  • a battery container such as a battery can or a laminate pack and subjected to a potential lowering treatment by filling the above-mentioned first electrolytic solution
  • the first electrolytic solution is removed, and further the above-mentioned second electrolytic solution is added. It can be obtained by filling, sealing in a battery can, heat-sealing in a laminate pack, and performing charge/discharge treatment at least once.
  • DMC Dimethyl carbonate EC: Ethylene carbonate (EC) FEC: fluoroethylene carbonate LiFSA: lithium fluorosulfonylimide
  • Example 2 A test battery cell was produced in the same manner as in Example 1 except that the electrolytic solutions A and B were changed to the electrolytic solutions C and D produced in Production Example 3-1 and Production Example 3-2, respectively.
  • the secondary batteries of the present invention obtained in Examples 1 and 2 have a higher capacity retention rate after the high temperature durability test than the secondary batteries obtained in Comparative Examples 1 to 3. It can be seen that the internal resistance increase rate is low.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Secondary Cells (AREA)

Abstract

La batterie secondaire de l'invention est équipée : d'une solution électrolytique ; d'une électrode positive qui contient une matière active d'électrode positive permettant l'insertion ou la désorption d'anions contenus dans la solution électrolytique ; d'une électrode négative qui contient une matière active d'électrode négative permettant l'insertion ou la désorption de cations contenus dans ladite solution électrolytique ; et d'un séparateur qui sépare les électrodes positive et négative. Un traitement abaissant le potentiel électrique de l'électrode négative est effectué à l'aide d'une première solution électrolytique constituée d'une solution électrolytique non aqueuse contenant un composé phosphore. Après ce traitement, un traitement de décharge et charge est effectué à l'aide d'une seconde solution électrolytique constituée d'une solution électrolytique non aqueuse contenant un composé bore, dans un état dans lequel la première solution électrolytique est éliminée. La batterie secondaire de l'invention est telle qu'une diminution de capacitance et une augmentation de résistance sont inhibées sous un environnement à haute température.
PCT/JP2020/000364 2019-01-16 2020-01-09 Batterie secondaire WO2020149199A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019004869A JP2020113492A (ja) 2019-01-16 2019-01-16 二次電池
JP2019-004869 2019-01-16

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WO2020149199A1 true WO2020149199A1 (fr) 2020-07-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112687838A (zh) * 2020-12-23 2021-04-20 宁德新能源科技有限公司 电化学装置及其制备方法和电子装置
WO2024095855A1 (fr) * 2022-11-02 2024-05-10 株式会社Adeka Procédé de fabrication de batterie secondaire au lithium-ion

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022050284A1 (fr) * 2020-09-03 2022-03-10 セントラル硝子株式会社 Électrolyte non aqueux et batterie à électrolyte non aqueux

Citations (4)

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Publication number Priority date Publication date Assignee Title
JP2014112524A (ja) * 2012-11-12 2014-06-19 Ricoh Co Ltd 非水電解液蓄電素子
JP2014150027A (ja) * 2013-02-04 2014-08-21 Toyota Motor Corp リチウムイオン二次電池の製造方法
JP2016018708A (ja) * 2014-07-09 2016-02-01 日本電気株式会社 非水電解液及びリチウムイオン二次電池
JP2017228513A (ja) * 2016-06-15 2017-12-28 株式会社リコー 非水電解液蓄電素子

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014112524A (ja) * 2012-11-12 2014-06-19 Ricoh Co Ltd 非水電解液蓄電素子
JP2014150027A (ja) * 2013-02-04 2014-08-21 Toyota Motor Corp リチウムイオン二次電池の製造方法
JP2016018708A (ja) * 2014-07-09 2016-02-01 日本電気株式会社 非水電解液及びリチウムイオン二次電池
JP2017228513A (ja) * 2016-06-15 2017-12-28 株式会社リコー 非水電解液蓄電素子

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112687838A (zh) * 2020-12-23 2021-04-20 宁德新能源科技有限公司 电化学装置及其制备方法和电子装置
WO2024095855A1 (fr) * 2022-11-02 2024-05-10 株式会社Adeka Procédé de fabrication de batterie secondaire au lithium-ion

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