CN103682442A - Non-aqueous electrolyte and application thereof - Google Patents

Non-aqueous electrolyte and application thereof Download PDF

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Publication number
CN103682442A
CN103682442A CN201310695925.8A CN201310695925A CN103682442A CN 103682442 A CN103682442 A CN 103682442A CN 201310695925 A CN201310695925 A CN 201310695925A CN 103682442 A CN103682442 A CN 103682442A
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Prior art keywords
electrolytic solution
nonaqueous electrolytic
additive
halogen
ester
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Inventor
陈晓琴
甘朝伦
李怀明
袁翔云
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Zhangjiagang Guotai Huarong New Chemical Materials Co Ltd
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Zhangjiagang Guotai Huarong New Chemical Materials Co Ltd
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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
    • H01M10/056—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
    • 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
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
    • 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

Abstract

The invention relates to a non-aqueous electrolyte which comprises an organic solvent, lithium salt and an additive, wherein the additive comprises an additive A, and the mass of the additive A accounts for 0.05%-5% of that of the non-aqueous electrolyte; the structural formula of the additive A is as follows: R1 represents the formula, R5 and R6 are independently selected from one of hydrogen, alkyl, alkoxy, phenyl, phenoxyl, halogen, halogen alkyl, halogen alkoxy, halogen phenyl and halogen phenoxyl, and n is an integer ranging from 1 to 10; and R2, R3 and R4 are independently selected from one of hydrogen, alkyl, alkoxy, phenyl, phenoxyl, halogen, halogen alkyl, halogen alkoxy, halogen phenyl and halogen phenoxyl, and halogen is fluorine, chlorine or bromine. The additive A is added into electrolyte, so that the high-temperature and normal-temperature cycling performance of a lithium ion battery are improved.

Description

A kind of nonaqueous electrolytic solution and application thereof
Technical field
The invention belongs to material technology field, be specifically related to a kind of nonaqueous electrolytic solution and application thereof.
Background technology
Lithium ion battery is deep in the middle of people's productive life more and more widely, and this makes its temperature environment become the main points of concern, and comparatively speaking, lithium battery more easily has problems under hot environment.For example, although with the LiMn of spinel structure 2o 4compare LiMnO 2aspect two of theoretical capacity and actual capacities, there is raising by a relatively large margin, but still there is structural unstable problem in charge and discharge process, in charge and discharge process, crystal structure repeatedly changes between layer structure and spinel structure, thereby cause expansion repeatedly and the contraction of electrode volume, cause cycle performance of battery to degenerate, and LiMnO 2also exist in the problems of dissolution compared with under elevated operating temperature.
Especially in recent years, LiFePO 4 material was good because of its security performance, and good cycle is environment friendly and pollution-free, and specific capacity advantages of higher obtains and widely applies on electrokinetic cell.But LiFePO4 is existent defect also, more and more research shows, cycle performance decay at high temperature rapidly.
At present, on market, day by day diversified electronic product is just towards miniaturization, portability, functional diversities development, while is along with the exhaustion day by day of the resources such as oil, coal, electric automobile industry is constantly being captured market, the operational environment of electric automobile is complicated, dynamical system is generally the battery pack that multiple battery connection in series-parallel forms, affected by installation site, ventilation condition and high power charging-discharging demand etc., the environmental condition that combining road travels, the hot environment that heat accumulation causes is the inevitable application conditions of used for electric vehicle lithium ion battery.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of nonaqueous electrolytic solution that can obviously improve high-temperature lithium ion battery and normal-temperature circulating performance.
Another technical problem to be solved by this invention is to provide the application of above-mentioned nonaqueous electrolytic solution in ferric phosphate lithium cell.
For achieving the above object, the technical solution used in the present invention is:
A nonaqueous electrolytic solution, is comprised of organic solvent, lithium salts and additive, and described additive comprises additive A, 0.05%～5% of the quality of the nonaqueous electrolytic solution described in the quality of described additive A accounts for, and the structural formula of described additive A is
Figure BDA0000440314280000021
wherein:
R 1representative
Figure BDA0000440314280000022
r wherein 5, R 6a kind of independently selected from hydrogen, alkyl, alkoxyl, phenyl, phenoxy group, halogen, haloalkyl, halogenated alkoxy, halogenophenyl and halogenated phenoxy, the integer that n is 1～10;
R 2, R 3, R 4a kind of independently selected from hydrogen, alkyl, alkoxyl, phenyl, phenoxy group, halogen, haloalkyl, halogenated alkoxy, halogenophenyl and halogenated phenoxy, wherein, halogen is fluorine, chlorine or bromine.
Preferably, the quality of described additive A account for described nonaqueous electrolytic solution quality 0.05%～2%.
Preferably, described additive A is for being selected from vinyl sulfuric acid vinyl ester
Figure BDA0000440314280000031
vinyl sulfuric acid propylene
Figure BDA0000440314280000032
trifluoro vinyl sulfuric acid vinyl ester
Figure BDA0000440314280000033
in any one.
Particularly, described organic solvent is the mixture of cyclic ester and chain ester.
Particularly, described cyclic ester is for being selected from one or more the combination in ethylene carbonate (EC), propene carbonate (PC), gamma-butyrolacton (GBL); Described chain ester is for being selected from one or more the combination in dimethyl carbonate (DMC), methyl ethyl carbonate (EMC), diethyl carbonate (DEC), methyl propyl carbonate (MPC), methyl propionate (MP), ethyl propionate (EP), propyl propionate (PP), methyl acetate (MA), ethyl acetate (EA), propyl acetate (PA), methyl butyrate (MB), butyl ester ethyl ester (EB), propyl butyrate (PB).
Particularly, described lithium salts is lithium hexafluoro phosphate LiPF 6, LiBF4 LiBF 4, hexafluoroarsenate lithium LiAsF 6, Lithium perchlorate anhydrous LiClO 4, two (trifluoromethane sulfonic acid acyl) imine lithium LiN (SO 2cF 3) 2, trifluoromethyl sulfonic acid lithium LiSO 3cF 3, dioxalic acid lithium borate LiC 2o 4bC 2o 4, the two lithium fluoroborate LiF of single oxalic acid 2bC 2o 4, two fluorine sulfimide lithium LiN (SO 2f) 2in one or more.
Preferably, the concentration of described lithium salts is 0.7～1.5mol/L.
Particularly, described additive also comprises other additives, 1%～6% of the quality of the nonaqueous electrolytic solution described in the quality of other described additives accounts for.
More specifically, other described additives are HMDS (HMDS), three (2,2,2-trifluoroethyl) one or more in phosphite ester (TTFP), triphenyl phosphite (TPP), biphenyl (BP), cyclohexyl benzene (CHB), fluorinated ethylene carbonate (FEC), sulfuric acid propylene (TSA), propylene sulfite (TMA), vinylene carbonate (VC).
The application of above-mentioned nonaqueous electrolytic solution in ferric phosphate lithium cell.
Because technique scheme is used, the present invention compared with prior art has following advantages:
The present invention, by add additive A in electrolyte, has improved high-temperature lithium ion battery and normal-temperature circulating performance.
Embodiment
Below in conjunction with specific embodiment, the present invention is elaborated:
Embodiment 1:
(H in the glove box of applying argon gas 2o<10ppm), with the volume ratio of PC:EMC:DMC=1:1:1, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein, to the vinyl sulfuric acid vinyl ester that adds mass percent 2% in this electrolyte.
The LiFePO4 soft-package battery that this electrolyte is injected to 1.5A, discharges and recharges battery is changed into 0.1C, surveys its first charge-discharge efficiency, then 0.2C charge and discharge cycles 10 weeks, tests its average charge/discharge capacity, and its result is as shown in table 1.
Embodiment 2:
(H in the glove box of applying argon gas 2o<10ppm), with the volume ratio of PC:EMC:DMC=1:1:1, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein, to adding mass percent in this electrolyte, be 5% vinyl sulfuric acid vinyl ester.
To above-mentioned electrolyte, under the condition identical with embodiment 1, change into, then under the condition identical with embodiment 1, to test it and on average charge and discharge electric capacity, its result is as shown in table 1.
Comparative example 1:
(H in the glove box of applying argon gas 2o<10ppm), with the volume ratio of PC:EMC:DMC=1:1:1, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein.
To above-mentioned electrolyte, under the condition identical with embodiment 1, change into, under the condition identical with embodiment 1, to carry out normal temperature 0.2C afterwards and discharge and recharge, its result is as shown in table 1.
Table 1
Figure BDA0000440314280000051
Embodiment 3:
(H in the glove box of applying argon gas 2o<10ppm), with the volume ratio of EC:EMC:DMC=1:1:1, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein, to adding mass percent in this electrolyte, be 1% vinyl sulfuric acid vinyl ester, 0.2% triphenyl phosphite and 2% cyclohexyl benzene.
The lithium iron phosphate aluminum housing battery that this electrolyte is injected to 10A, discharges and recharges battery is changed into 0.1C, surveys its first charge-discharge efficiency, then carries out 1C and discharge and recharge normal temperature and 45 ℃ of circulations of high temperature, tests its normal temperature and high temperature cyclic performance, and its result is as shown in table 2.
Embodiment 4:
(H in the glove box of applying argon gas 2o<10ppm), with the volume ratio of EC:EMC:DMC=1:1:1, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein, to adding mass percent in this electrolyte, be 2% vinyl sulfuric acid vinyl ester, 0.2% triphenyl phosphite and 2% cyclohexyl benzene.
To above-mentioned electrolyte, under the condition identical with embodiment 3, change into, then under the condition identical with embodiment 3, carry out 1C charge and discharge cycles, its result is as shown in table 2.
Embodiment 5:
(H in the glove box of applying argon gas 2o<10ppm), with the volume ratio of EC:EMC:DMC=1:1:1, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein, to adding mass percent in this electrolyte, be 2% vinyl sulfuric acid propylene, 0.2% triphenyl phosphite and 2% cyclohexyl benzene.
To above-mentioned electrolyte, under the condition identical with embodiment 3, change into, then under the condition identical with embodiment 3, carry out 1C charge and discharge cycles, its result is as shown in table 2.
Embodiment 6:
(H in the glove box of applying argon gas 2o<10ppm), with the volume ratio of EC:EMC:DMC=1:1:1, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein, to adding mass percent in this electrolyte, be 2% trifluoro vinyl sulfuric acid vinyl ester, 0.2% triphenyl phosphite and 2% cyclohexyl benzene.
To above-mentioned electrolyte, under the condition identical with embodiment 3, change into, then under the condition identical with embodiment 3, carry out 1C charge and discharge cycles, its result is as shown in table 2.
Embodiment 7:
(H in the glove box of applying argon gas 2o<10ppm), with EC:EMC:DMC=1:1:1 volume ratio, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein, in this electrolyte, add 2% vinyl sulfuric acid vinyl ester.
The cobalt acid lithium aluminum-shell battery that this electrolyte is injected to 800mA, discharges and recharges battery is changed into 0.1C, surveys its first charge-discharge efficiency, then carries out 1C and discharge and recharge normal temperature and 45 ℃ of circulations of high temperature, tests its normal temperature and high temperature cyclic performance, and its result is as shown in table 2.
Embodiment 8:
(H in the glove box of applying argon gas 2o<10ppm), with the volume ratio of EC:PC:EMC:DMC=45:10:27:18, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.2mol/L 6) in wherein, to adding mass percent in this electrolyte, be 1% vinyl sulfuric acid vinyl ester, 2% vinylene carbonate and 3% propylene sulfite.
To above-mentioned electrolyte, under the condition identical with embodiment 3, change into, then under the condition identical with embodiment 3, carry out 1C charge and discharge cycles, its result is as shown in table 2.
Embodiment 9:
(H in the glove box of applying argon gas 2o<10ppm), with the volume ratio of EC:PC:EMC:DMC=45:10:27:18, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.2mol/L 6) in wherein, to adding mass percent in this electrolyte, be 1.5% vinyl sulfuric acid vinyl ester, 2% vinylene carbonate and 3% propylene sulfite.
To above-mentioned electrolyte, under the condition identical with embodiment 3, change into, then under the condition identical with embodiment 3, carry out 1C charge and discharge cycles, its result is as shown in table 2.
Embodiment 10:
(H in the glove box of applying argon gas 2o<10ppm), with EC:PC:EMC:DMC=45:10:27:18 volume ratio, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.2mol/L 6) in wherein, to adding mass percent in this electrolyte, be 1.5% vinyl sulfuric acid propylene, 2% vinylene carbonate and 3% propylene sulfite.
To above-mentioned electrolyte, under the condition identical with embodiment 3, change into, then under the condition identical with embodiment 3, carry out 1C charge and discharge cycles, its result is as shown in table 2.
Embodiment 11:
(H in the glove box of applying argon gas 2o<10ppm), with EC:PC:EMC:DMC=45:10:27:18 volume ratio, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.2mol/L 6) in wherein, to adding mass percent in this electrolyte, be 1.5% trifluoro vinyl sulfuric acid vinyl ester, 2% vinylene carbonate and 3% propylene sulfite.
To above-mentioned electrolyte, under the condition identical with embodiment 3, change into, then under the condition identical with embodiment 3, carry out 1C charge and discharge cycles, its result is as shown in table 2.
Comparative example 2:
(H in the glove box of applying argon gas 2o<10ppm), with EC:EMC:DMC=1:1:1 volume ratio, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein, to adding mass percent in this electrolyte, be 0.2% triphenyl phosphite and 2% cyclohexyl benzene.
To above-mentioned electrolyte, under the condition identical with embodiment 3, change into, under the condition identical with embodiment 3, carry out 1C charge and discharge cycles afterwards, its result is as shown in table 2.
Comparative example 3:
(H in the glove box of applying argon gas 2o<10ppm), with EC:EMC:DMC=1:1:1 volume ratio, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein, to adding mass percent in this electrolyte, be 2% vinyl sulfuric acid vinyl ester.
To above-mentioned electrolyte, under the condition identical with embodiment 7, change into, under the condition identical with embodiment 7, carry out 1C charge and discharge cycles afterwards, its result is as shown in table 2.
Comparative example 4:
(H in the glove box of applying argon gas 2o<10ppm), with EC:EMC:DMC=1/1/1 volume ratio, mix, then dissolve the lithium hexafluoro phosphate (LiPF of 1.0mol/L 6) in wherein, to adding mass percent in this electrolyte, be 2% vinylene carbonate, 3% propylene sulfite and 1% vinyl ethylene carbonate.
To above-mentioned electrolyte, under the condition identical with embodiment 3, change into, then under the condition identical with embodiment 3, carry out 1C charge and discharge cycles, its result is as shown in table 2.
Table 2
Figure BDA0000440314280000091
Above-described embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.

Claims (10)

1. a nonaqueous electrolytic solution, by organic solvent, lithium salts and additive, formed, it is characterized in that: described additive comprises additive A, 0.05%～5% of the quality of the nonaqueous electrolytic solution described in the quality of described additive A accounts for, the structural formula of described additive A is
Figure FDA0000440314270000011
wherein:
R 1representative
Figure FDA0000440314270000012
r wherein 5, R 6a kind of independently selected from hydrogen, alkyl, alkoxyl, phenyl, phenoxy group, halogen, haloalkyl, halogenated alkoxy, halogenophenyl and halogenated phenoxy, the integer that n is 1～10;
R 2, R 3, R 4a kind of independently selected from hydrogen, alkyl, alkoxyl, phenyl, phenoxy group, halogen, haloalkyl, halogenated alkoxy, halogenophenyl and halogenated phenoxy, wherein, halogen is fluorine, chlorine or bromine.
2. nonaqueous electrolytic solution according to claim 1, is characterized in that: 0.05%～2% of the quality of the nonaqueous electrolytic solution described in the quality of described additive A accounts for.
3. nonaqueous electrolytic solution according to claim 1, is characterized in that: described additive A is to be selected from any one in vinyl sulfuric acid vinyl ester, vinyl sulfuric acid propylene, trifluoro vinyl sulfuric acid vinyl ester.
4. nonaqueous electrolytic solution according to claim 1, is characterized in that: described organic solvent is the mixture of cyclic ester and chain ester.
5. nonaqueous electrolytic solution according to claim 4, is characterized in that: described cyclic ester is one or more the combination being selected from ethylene carbonate, propene carbonate, gamma-butyrolacton; Described chain ester is one or more the combination being selected from dimethyl carbonate, methyl ethyl carbonate, diethyl carbonate, methyl propyl carbonate, methyl propionate, ethyl propionate, propyl propionate, methyl acetate, ethyl acetate, propyl acetate, methyl butyrate, butyl ester ethyl ester, propyl butyrate.
6. nonaqueous electrolytic solution according to claim 1, is characterized in that: described lithium salts is LiPF 6, LiBF 4, LiAsF 6, LiClO 4, LiN (SO 2cF 3) 2, LiSO 3cF 3, LiC 2o 4bC 2o 4, LiF 2bC 2o 4, LiN (SO 2f) 2in one or more.
7. nonaqueous electrolytic solution according to claim 1, is characterized in that: the concentration of described lithium salts is 0.7～1.5mol/L.
8. nonaqueous electrolytic solution according to claim 1, is characterized in that: described additive also comprises other additives, 1%～6% of the quality of the nonaqueous electrolytic solution described in the quality of other described additives accounts for.
9. nonaqueous electrolytic solution according to claim 8, it is characterized in that: other described additives are HMDS, three (2,2,2-trifluoroethyl) one or more in phosphite ester, triphenyl phosphite, biphenyl, cyclohexyl benzene, fluorinated ethylene carbonate, sulfuric acid propylene, propylene sulfite, vinylene carbonate.
10. the application of nonaqueous electrolytic solution in ferric phosphate lithium cell as claimed in any one of claims 1-9 wherein.
CN201310695925.8A 2013-12-18 2013-12-18 Non-aqueous electrolyte and application thereof Pending CN103682442A (en)

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Cited By (8)

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CN105514489A (en) * 2016-01-28 2016-04-20 宁德新能源科技有限公司 Electrolyte and lithium ion battery containing electrolyte
CN108242566A (en) * 2016-12-26 2018-07-03 宁德时代新能源科技股份有限公司 Electrolyte solution and secondary battery
CN109390628A (en) * 2017-08-08 2019-02-26 张家港市国泰华荣化工新材料有限公司 A kind of nonaqueous electrolytic solution and lithium ion battery
CN109873204A (en) * 2019-02-27 2019-06-11 杉杉新材料（衢州）有限公司 A kind of ternary lithium-ion battery electrolytes and the lithium ion battery containing the electrolyte
CN109994768A (en) * 2017-12-29 2019-07-09 宁德时代新能源科技股份有限公司 Electrolyte solution and secondary battery
CN111048833A (en) * 2019-10-30 2020-04-21 深圳市卓能新能源股份有限公司 High-voltage electrolyte and high-voltage lithium ion power battery
CN114122491A (en) * 2020-08-31 2022-03-01 深圳新宙邦科技股份有限公司 Lithium ion battery
CN115911544A (en) * 2021-08-16 2023-04-04 张家港市国泰华荣化工新材料有限公司 Non-aqueous electrolyte and lithium battery

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CN101160684A (en) * 2005-03-02 2008-04-09 U芝加哥阿谷尼有限公司 Novel redox shuttles for overcharge protection of lithium batteries

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US20060147809A1 (en) * 2004-05-28 2006-07-06 The University Of Chicago Long life lithium batteries with stabilized electrodes
CN101160684A (en) * 2005-03-02 2008-04-09 U芝加哥阿谷尼有限公司 Novel redox shuttles for overcharge protection of lithium batteries

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105514489A (en) * 2016-01-28 2016-04-20 宁德新能源科技有限公司 Electrolyte and lithium ion battery containing electrolyte
CN108242566A (en) * 2016-12-26 2018-07-03 宁德时代新能源科技股份有限公司 Electrolyte solution and secondary battery
WO2018120787A1 (en) * 2016-12-26 2018-07-05 宁德时代新能源科技股份有限公司 Electrolyte and secondary battery
CN109390628A (en) * 2017-08-08 2019-02-26 张家港市国泰华荣化工新材料有限公司 A kind of nonaqueous electrolytic solution and lithium ion battery
CN109390628B (en) * 2017-08-08 2020-09-01 张家港市国泰华荣化工新材料有限公司 Non-aqueous electrolyte and lithium ion battery
CN109994768A (en) * 2017-12-29 2019-07-09 宁德时代新能源科技股份有限公司 Electrolyte solution and secondary battery
CN109873204A (en) * 2019-02-27 2019-06-11 杉杉新材料（衢州）有限公司 A kind of ternary lithium-ion battery electrolytes and the lithium ion battery containing the electrolyte
CN111048833A (en) * 2019-10-30 2020-04-21 深圳市卓能新能源股份有限公司 High-voltage electrolyte and high-voltage lithium ion power battery
CN114122491A (en) * 2020-08-31 2022-03-01 深圳新宙邦科技股份有限公司 Lithium ion battery
CN115911544A (en) * 2021-08-16 2023-04-04 张家港市国泰华荣化工新材料有限公司 Non-aqueous electrolyte and lithium battery
CN115911544B (en) * 2021-08-16 2024-03-01 张家港市国泰华荣化工新材料有限公司 Nonaqueous electrolyte and lithium battery

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Application publication date: 20140326