WO2016053040A1 - Additif d'électrolyte pour batterie secondaire au lithium, électrolyte non aqueux et batterie secondaire au lithium comprenant l'additif d'électrolyte - Google Patents

Additif d'électrolyte pour batterie secondaire au lithium, électrolyte non aqueux et batterie secondaire au lithium comprenant l'additif d'électrolyte Download PDF

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WO2016053040A1
WO2016053040A1 PCT/KR2015/010415 KR2015010415W WO2016053040A1 WO 2016053040 A1 WO2016053040 A1 WO 2016053040A1 KR 2015010415 W KR2015010415 W KR 2015010415W WO 2016053040 A1 WO2016053040 A1 WO 2016053040A1
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carbon
carbonate
aqueous electrolyte
formula
group
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PCT/KR2015/010415
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English (en)
Korean (ko)
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안경호
박솔지
이철행
오정우
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주식회사 엘지화학
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Priority to CN201580053570.XA priority Critical patent/CN111052484B/zh
Priority to EP15846320.8A priority patent/EP3203568B1/fr
Priority to JP2017517283A priority patent/JP6542882B2/ja
Priority to US15/516,106 priority patent/US10381685B2/en
Priority claimed from KR1020150138640A external-priority patent/KR101737222B1/ko
Publication of WO2016053040A1 publication Critical patent/WO2016053040A1/fr

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    • 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
    • H01M10/056—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
    • H01M10/0569—Liquid materials characterised by the solvents
    • 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

Definitions

  • the present invention relates to a secondary battery in which a non-aqueous electrolyte solution containing an isocyanate compound is included in a secondary battery, thereby improving life characteristics and high temperature durability.
  • lithium secondary batteries having high energy density and voltage among these secondary batteries are commercially used and widely used.
  • Lithium metal oxide is used as a positive electrode active material of a lithium secondary battery, and lithium metal, a lithium alloy, crystalline or amorphous carbon or a carbon composite material is used as a negative electrode active material.
  • the active material is applied to a current collector with a suitable thickness and length, or the active material itself is applied in a film shape to form an electrode group by winding or laminating together with a separator, which is an insulator, and then put it in a can or a similar container, and then injecting an electrolyte solution.
  • a secondary battery is manufactured.
  • lithium secondary battery In such a lithium secondary battery, charging and discharging progress while repeating a process of intercalating and deintercalating lithium ions from a lithium metal oxide of a positive electrode to a graphite electrode of a negative electrode.
  • lithium is highly reactive and reacts with the carbon electrode to generate Li 2 CO 3 , LiO, LiOH and the like to form a film on the surface of the negative electrode.
  • a film is called a solid electrolyte interface (SEI) film, and the SEI film formed at the beginning of charging prevents the reaction between lithium ions and a carbon anode or other material during charging and discharging. It also acts as an ion tunnel, allowing only lithium ions to pass through.
  • the ion tunnel serves to prevent the organic solvents of a large molecular weight electrolyte which solvates lithium ions and move together and are co-intercalated with the carbon anode to decay the structure of the carbon anode.
  • a solid SEI film must be formed on the negative electrode of the lithium secondary battery. Once formed, the SEI membrane prevents the reaction between lithium ions and the negative electrode or other materials during repeated charge / discharge cycles, and serves as an ion tunnel that passes only lithium ions between the electrolyte and the negative electrode. Will be performed.
  • the present invention aims to solve the technical problem that has been requested from the past as described above.
  • the inventors of the present application have confirmed that the output characteristics and stability are improved when the isocyanate compound additive including the carbon-carbon-triple bond in the nonaqueous electrolyte is improved in the electrolyte solution, and completed the present invention.
  • the present invention comprises a non-aqueous organic solvent, a lithium salt and an additive
  • the additive provides a non-aqueous electrolyte solution is an isocyanate compound containing a carbon-carbon triple bond.
  • the isocyanate compound including the carbon-carbon triple bond may include one or more selected from the group consisting of compounds represented by the following Chemical Formulas 1 to 3.
  • R may be a linear or cyclic alkylene group, or an aromatic hydrocarbon group.
  • the isocyanate compound including the carbon-carbon triple bond may be included in an amount of 0.05 to 2 wt% based on the total weight of the nonaqueous electrolyte.
  • the lithium salt is LiPF 6 , LiAsF 6 , LiCF 3 SO 3 , LiN (FSO 2 ) 2 , LiN (CF 3 SO 2 ) 2 , LiBF 6 , LiSbF 6 , LiN (C 2 F 5 SO 2 ) 2 , LiAlO 4 , LiAlCl 4 , LiSO 3 CF 3 and LiClO 4 , any one selected from the group consisting of or a mixture of two or more thereof.
  • the non-aqueous organic solvent is a nitrile solvent, linear carbonate, cyclic carbonate, ester, ether, Ketone or combinations thereof.
  • Lithium secondary battery according to the present invention by including an isocyanate compound containing a carbon-carbon triple bond in the non-aqueous electrolyte, it is possible to improve the output characteristics and stability of the resulting secondary battery.
  • the non-aqueous electrolyte according to an embodiment of the present invention may include an additive which is an isocyanate compound including a non-aqueous organic solvent, a lithium salt, and a carbon-carbon triple bond.
  • the isocyanate compound is a compound having a structure capable of easily reacting with an electrode surface in a thin film state and coordinating Li ions in structure, and specifically, the isocyanate compound is selected from compounds represented by the following Chemical Formulas 1 to 3 It may be to include one or more.
  • R may be a linear or cyclic alkylene group, or an aromatic hydrocarbon group.
  • R may be a hydrocarbon group excluding two isocyanate groups from one compound selected from the group consisting of compounds represented by the following Chemical Formulas 4 to 7.
  • the additive according to an embodiment of the present invention may form a homogeneous film in the electrolyte by having a -OH group-friendly property on the surface of the positive electrode or the negative electrode. More specifically, the + charge of the isocyanate group nitrogen (N) portion of the isocyanate compound is bonded to the —OH group on the surface of the positive or negative electrode. Accordingly, the additive of the isocyanate compound according to the embodiment of the present invention may form a stable SEI film on the electrode surface.
  • the carbon-carbon triple bond which is one of the functional groups of the isocyanate compound, is capable of forming a stable film through a reduction reaction, and in the case of a portion in which the reduction reaction is small, the SEI is stable by reacting with an -OH group on the electrode surface through an isocyanate group.
  • a film can be formed. That is, the compound including the carbon-carbon triple bond and the isocyanate group at the same time according to an embodiment of the present invention can be complemented to form a film on the electrode surface more efficiently.
  • the isocyanate compound additive may be included in the 0.05 to 2% by weight based on the total weight of the non-aqueous electrolyte.
  • the content of the isocyanate compound is less than 0.05% by weight, the effect of improving the life characteristics and the high temperature durability according to an embodiment of the present invention is low, and when it exceeds 2% by weight, the possibility of gas generation at high temperature is increased.
  • the non-aqueous electrolyte according to one embodiment of the present invention may further include a heterogeneous additive.
  • the non-aqueous electrolyte may further include a solid electrolyte interface (SEI) forming additive which is generally well known to suit the purpose.
  • SEI solid electrolyte interface
  • additives such as vinylene carbonate, vinyl ethylene carbonate, 1,3-propenesultone, 1,3-propanesultone, succinyl anhydride, lactam and caprolactam It may further include.
  • cyclic nuclear chamber benzene, biphenyl, para chlorobenzene may be further included to improve overcharge.
  • Such additives are not limited to the above examples, and in addition, various kinds of negative electrode and positive electrode film forming additives may be further added to the electrolyte in order to improve battery performance.
  • the lithium salt is, for example, LiPF 6 , LiAsF 6 , LiCF 3 SO 3 , LiN (FSO 2 ) 2 , LiN (CF 3 SO 2 ) 2 , LiBF 6 , LiSbF 6 , LiN (C 2 F 5 SO 2 ) 2 , LiAlO 4 , LiAlCl 4 , LiSO 3 CF 3 and LiClO 4 may be any one selected from the group consisting of or a mixture of two or more thereof.
  • non-aqueous organic solvent that can be included in the non-aqueous electrolyte solution
  • non-aqueous organic solvent there is no limitation as long as it can minimize decomposition by an oxidation reaction or the like in the process of charging and discharging the battery, and can exhibit desired properties with an additive, for example Nitrile solvents, cyclic carbonates, linear carbonates, esters, ethers or ketones and the like. These may be used alone, or two or more thereof may be used in combination.
  • Carbonate-based organic solvents of the organic solvents can be easily used, the cyclic carbonate is any one selected from the group consisting of ethylene carbonate (EC), propylene carbonate (PC) and butylene carbonate (BC) or two of them A mixture of two or more species, the linear carbonate consists of dimethyl carbonate (DMC), diethyl carbonate (DEC), dipropyl carbonate (DPC), ethylmethyl carbonate (EMC), methylpropyl carbonate (MPC) and ethylpropyl carbonate (EPC) It may be any one selected from the group or a mixture of two or more thereof.
  • DMC dimethyl carbonate
  • DEC diethyl carbonate
  • DPC dipropyl carbonate
  • EMC ethylmethyl carbonate
  • MPC methylpropyl carbonate
  • EPC ethylpropyl carbonate
  • the nitrile solvents include acetonitrile, propionitrile, butyronitrile, valeronitrile, caprylonitrile, heptanenitrile, cyclopentane carbonitrile, cyclohexane carbonitrile, 2-fluorobenzonitrile and 4-fluorobenzonitrile , Difluorobenzonitrile, trifluorobenzonitrile, phenylacetonitrile, 2-fluorophenylacetonitrile, 4-fluorophenylacetonitrile may be one or more selected from the group consisting of, one embodiment of the present invention Acetonitrile may be used as the non-aqueous solvent according to the example.
  • a cathode, an anode, and a separator include a non-aqueous electrolyte solution containing the isocyanate compound, and at least one of the cathode or the anode is characterized in that the SEI film is formed on the surface. It may be a secondary battery.
  • the SEI film is a hydroxyl group (R) on the surface of the negative electrode or the positive electrode in a process in which an isocyanate compound having a carbon-carbon triple bond included in the electrolyte is subjected to an initial charge / discharge process or injected into the electrolyte in a secondary battery.
  • '-OH) and nitrogen (N) of the isocyanate compound of the non-aqueous electrolyte solution may be formed by a urethane bond or an electrostatic force, or may be formed through a reduction reaction of a carbon-carbon triple bond which is a functional group of the isocyanate compound. have.
  • the positive electrode may be formed by applying a positive electrode mixture on a positive electrode current collector and dried, and the negative electrode may be formed by applying a negative electrode mixture on a negative electrode current collector and then drying.
  • the positive electrode current collector is not particularly limited as long as it has a high conductivity without causing chemical change in the battery, for example, stainless steel, aluminum, nickel, titanium, calcined carbon, or the surface of aluminum or stainless steel Surface treated with carbon, nickel, titanium, silver, or the like can be used.
  • the positive electrode current collector may use various forms such as a film, a sheet, a foil, a net, a porous body, a foam, and a nonwoven fabric having fine irregularities formed on a surface thereof so as to increase the adhesion with the positive electrode active material.
  • the negative electrode current collector is not particularly limited as long as it has conductivity without causing chemical change in the battery.
  • the negative electrode current collector may be formed on a surface of copper, stainless steel, aluminum, nickel, titanium, calcined carbon, copper, or stainless steel. Surface-treated with carbon, nickel, titanium, silver and the like, aluminum-cadmium alloy and the like can be used.
  • the negative electrode current collector, like the positive electrode current collector may be used in various forms such as a film, a sheet, a foil, a net, a porous body, a foam, a nonwoven fabric having fine irregularities formed on a surface thereof.
  • the positive electrode or negative electrode mixture may include an oxide containing at least one hydroxyl group (-OH) group, which can be used in the production of a typical positive electrode or negative electrode for secondary batteries.
  • -OH hydroxyl group
  • the oxide is selected from the group consisting of lithium-containing titanium composite oxide (LTO) or Si, Sn, Li, Zn, Mg, Cd, Ce, Ni and Fe, which can easily occlude and release lithium ions.
  • LTO lithium-containing titanium composite oxide
  • Si silicon, Sn, Li, Zn, Mg, Cd, Ce, Ni and Fe, which can easily occlude and release lithium ions.
  • the positive or negative electrode mixture may further include a binder resin, a conductive material, a filler and other additives.
  • the binder resin is a component that assists the bonding of the electrode active material and the conductive material and the bonding to the current collector, and is generally added in an amount of 1 to 50 wt% based on the total weight of the electrode mixture.
  • binder resins include polyvinylidene fluoride (PVDF), polyvinyl alcohol, carboxymethyl cellulose (CMC), starch, hydroxypropyl cellulose, regenerated cellulose, polyvinylpyrrolidone, tetra Fluoroethylene, polyethylene, polypropylene, ethylene-propylene-diene polymer (EPDM), sulfonated-EPDM, styrene-butadiene rubber (SBR), fluorine rubber, various copolymers thereof, and the like.
  • PVDF polyvinylidene fluoride
  • CMC carboxymethyl cellulose
  • EPDM ethylene-propylene-diene polymer
  • SBR styrene-butadiene rubber
  • the conductive material is a component for further improving the conductivity of the electrode active material, and may be added in an amount of 1 to 20 wt% based on the total weight of the electrode mixture.
  • a conductive material is not particularly limited as long as it has conductivity without causing chemical change in the battery, and examples thereof include graphite such as natural graphite and artificial graphite; Carbon blacks such as carbon black, acetylene black, Ketjen black, channel black, furnace black, lamp black, and summer black; Conductive fibers such as carbon fibers and metal fibers; Metal powders such as carbon fluoride powder, aluminum powder and nickel powder; Conductive whiskeys such as zinc oxide and potassium titanate; Conductive metal oxides such as titanium oxide; Polyphenylene derivatives and the like can be used.
  • the filler is optionally used as a component for inhibiting the expansion of the electrode, and is not particularly limited as long as it is a fibrous material without causing chemical change in the battery.
  • the filler include olefinic polymers such as polyethylene and polypropylene; Fibrous materials, such as glass fiber and carbon fiber, are used.
  • the separator is a conventional porous polymer film conventionally used as a separator, for example, polyolefin-based polymer such as ethylene homopolymer, propylene homopolymer, ethylene / butene copolymer, ethylene / hexene copolymer and ethylene / methacrylate copolymer
  • the porous polymer film prepared by using a single or a lamination thereof may be used, or a conventional porous nonwoven fabric, for example, a non-woven fabric made of high melting glass fibers, polyethylene terephthalate fibers, etc. may be used, but is not limited thereto. .
  • Ethylene carbonate (EC): ethylmethyl carbonate (EMC): dimethyl carbonate (DMC) 3: 3: 4 non-aqueous organic solvent having a composition by weight (weight ratio) and lithium salt LiPF 6 based on the total amount of the non-aqueous electrolyte
  • EMC ethylmethyl carbonate
  • DMC dimethyl carbonate
  • the non-aqueous electrolyte was prepared by adding 1.0 mol / L and adding 0.5% by weight of the compound represented by Formula 1 as an additive based on the total amount of the non-aqueous electrolyte.
  • Li (Ni 0.6 Co 0.2 Mn 0.2 ) O 2 as a positive electrode active material, 3% by weight carbon black as a conductive agent, and 3% by weight binder PVdF were added to N-methyl-2 pyrrolidone (NMP) as a solvent to prepare a positive electrode mixture.
  • NMP N-methyl-2 pyrrolidone
  • a slurry was prepared, and the cathode mixture slurry was applied to an aluminum (Al) thin film, which is a positive electrode current collector having a thickness of 20 ⁇ m, and dried to prepare a cathode including pores.
  • a negative electrode mixture slurry was prepared by adding 95.5% by weight of carbon powder, 1.5% by weight of Super-P (conductor) and 3% by weight of SBR / CMC (binder) as the negative electrode active material to H 2 O. It was coated on both sides of the copper foil, dried and pressed to prepare a negative electrode.
  • a secondary battery was completed in the same manner as in Example 1 except for using an isocyanate compound composed of Formula 2 instead of the compound represented by Formula 1.
  • a secondary battery was completed in the same manner as in Example 1, except that R isocyanate compound composed of Formula 4 instead of compound represented by Formula 1 above.
  • a secondary battery was completed in the same manner as in Example 1 except that 0.3 wt% of the compound represented by Chemical Formula 1 and 1 wt% of vinylene carbonate were used.
  • a secondary battery was completed in the same manner as in Example 1 except that the additive was not included in the non-aqueous electrolyte.
  • the secondary batteries prepared in Examples 1 to 4 and Comparative Example 1 were charged at 1 C up to 4.15 V / 38 mA under constant current / constant voltage (CC / CV) conditions, and then discharged at 1 C up to 2.5 V under constant current (CC) conditions. The discharge capacity was measured. The results are shown in Table 1 below.
  • the thicknesses of the secondary batteries prepared in Examples 1 to 4 and Comparative Example 1 were measured, and the thicknesses after storage for 1 week and 2 weeks at 60 ° C. were measured.
  • the lithium secondary batteries of Examples 1 to 4 including a non-aqueous electrolyte solution containing an isocyanate compound containing a carbon-carbon triple bond of the present invention as an additive are compared without the additive. It can be seen that the discharge resistance is lower than that of the lithium secondary battery of Example 1.
  • the lithium secondary battery of Examples 1 to 4 including a non-aqueous electrolyte containing an isocyanate compound containing a carbon-carbon triple bond of the present invention as an additive the thickness of the secondary battery The increase was small, especially when the high temperature storage period reached two weeks, the difference in thickness increase was more pronounced, and when the isocyanate compound including carbon-carbon triple bond was included as an additive, the high temperature storage property of the lithium secondary battery It can be seen that this improvement can reduce the increase in thickness after high temperature storage.

Abstract

La présente invention concerne un électrolyte non aqueux comprenant : un additif qui est un composé à base d'isocyanate comprenant un solvant organique non aqueux, un sel de lithium et une triple liaison carbone-carbone ; et le composé à base d'isocyanate comprenant une triple liaison carbone-carbone. Dans le cas où l'additif de composé à base d'isocyanate comprenant une triple liaison carbone-carbone de la présente invention est inclus dans un électrolyte non aqueux, les propriétés de durée de vie et de durabilité à haute température peuvent être améliorées, la résistance interne d'une batterie peut être réduite.
PCT/KR2015/010415 2014-10-02 2015-10-01 Additif d'électrolyte pour batterie secondaire au lithium, électrolyte non aqueux et batterie secondaire au lithium comprenant l'additif d'électrolyte WO2016053040A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201580053570.XA CN111052484B (zh) 2014-10-02 2015-10-01 用于锂二次电池的液体电解质添加剂、包含该添加剂的非水液体电解质和锂二次电池
EP15846320.8A EP3203568B1 (fr) 2014-10-02 2015-10-01 Additif d'électrolyte pour batterie secondaire au lithium, électrolyte non aqueux et batterie secondaire au lithium comprenant l'additif d'électrolyte
JP2017517283A JP6542882B2 (ja) 2014-10-02 2015-10-01 リチウム二次電池用電解液添加剤、前記電解液添加剤を含む非水性電解液及びリチウム二次電池
US15/516,106 US10381685B2 (en) 2014-10-02 2015-10-01 Liquid electrolyte additive for lithium secondary battery, non-aqueous liquid electrolyte and lithium secondary battery comprising the same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2014-0133432 2014-10-02
KR20140133432 2014-10-02
KR1020150138640A KR101737222B1 (ko) 2014-10-02 2015-10-01 리튬 이차 전지용 전해액 첨가제, 상기 전해액 첨가제를 포함하는 비수성 전해액 및 리튬 이차 전지
KR10-2015-0138640 2015-10-01

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Cited By (5)

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WO2018070846A1 (fr) * 2016-10-14 2018-04-19 주식회사 엘지화학 Électrolyte pour batterie secondaire au lithium et batterie secondaire au lithium le comprenant
KR20180041602A (ko) * 2016-10-14 2018-04-24 주식회사 엘지화학 리튬 이차전지용 전해액 및 이를 포함하는 리튬 이차전지
EP3324478A4 (fr) * 2015-08-19 2018-05-23 LG Chem, Ltd. Électrolyte pour batterie secondaire au lithium et batterie secondaire au lithium la comprenant
EP3804724A1 (fr) 2016-10-20 2021-04-14 Pfizer Inc. Inhibiteurs de cdk pour le traitement de la htap
CN116730880A (zh) * 2023-08-14 2023-09-12 江苏天合储能有限公司 电解液除水添加剂、电解液及锂离子电池

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
EP3324478A4 (fr) * 2015-08-19 2018-05-23 LG Chem, Ltd. Électrolyte pour batterie secondaire au lithium et batterie secondaire au lithium la comprenant
US10693179B2 (en) 2015-08-19 2020-06-23 Lg Chem, Ltd. Electrolyte solution for lithium secondary battery and lithium secondary battery comprising the same
WO2018070846A1 (fr) * 2016-10-14 2018-04-19 주식회사 엘지화학 Électrolyte pour batterie secondaire au lithium et batterie secondaire au lithium le comprenant
KR20180041602A (ko) * 2016-10-14 2018-04-24 주식회사 엘지화학 리튬 이차전지용 전해액 및 이를 포함하는 리튬 이차전지
CN108701865A (zh) * 2016-10-14 2018-10-23 株式会社Lg化学 用于锂二次电池的电解液以及包含其的锂二次电池
EP3396769A4 (fr) * 2016-10-14 2019-01-09 LG Chem, Ltd. Électrolyte pour batterie secondaire au lithium et batterie secondaire au lithium le comprenant
KR102018756B1 (ko) 2016-10-14 2019-09-06 주식회사 엘지화학 리튬 이차전지용 전해액 및 이를 포함하는 리튬 이차전지
US10615450B2 (en) 2016-10-14 2020-04-07 Lg Chem, Ltd. Electrolyte solution for lithium secondary battery and lithium secondary battery including the same
CN108701865B (zh) * 2016-10-14 2021-08-03 株式会社Lg化学 用于锂二次电池的电解液以及包含其的锂二次电池
EP3804724A1 (fr) 2016-10-20 2021-04-14 Pfizer Inc. Inhibiteurs de cdk pour le traitement de la htap
CN116730880A (zh) * 2023-08-14 2023-09-12 江苏天合储能有限公司 电解液除水添加剂、电解液及锂离子电池
CN116730880B (zh) * 2023-08-14 2023-10-27 江苏天合储能有限公司 电解液除水添加剂、电解液及锂离子电池

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