CN108134134A - A kind of lithium-ion battery electrolytes additive, electrolyte, lithium ion battery - Google Patents
A kind of lithium-ion battery electrolytes additive, electrolyte, lithium ion battery Download PDFInfo
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- CN108134134A CN108134134A CN201711311478.6A CN201711311478A CN108134134A CN 108134134 A CN108134134 A CN 108134134A CN 201711311478 A CN201711311478 A CN 201711311478A CN 108134134 A CN108134134 A CN 108134134A
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- lithium
- ion battery
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- sulfuric acid
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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
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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
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- 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 present invention relates to a kind of lithium-ion battery electrolytes additive, electrolyte, lithium ion batteries, belong to technical field of lithium ion.Select thermal stability good in lithium ion battery additive provided by the invention; the component low into membrane impedance; wherein ethylene carbonate, sulfuric acid vinyl ester can improve the conductivity of lithium-ion electrolyte under low temperature and ultralow temperature; three (trimethyl silane) borates can protect anode, improve the high-temperature behavior of battery.Lithium ion battery prepared by the electrolyte added with the additive can take into account performance under low temperature, the condition of high temperature, discharge capacity reaches the 85% of initial capacity in 20 DEG C of low temperature environments, battery discharge capacity in 40 DEG C of low temperature environments reaches the 75% of initial capacity, and 85% is kept in 55 DEG C of storage 28d battery capacities of high temperature.
Description
Technical field
The present invention relates to a kind of lithium-ion battery electrolytes additive, electrolyte, lithium ion batteries, belong to lithium ion battery
Technical field.
Background technology
Compared with other kinds of secondary cell, lithium ion battery have voltage is high, energy density is high, service life is long,
The advantages that self discharge is small, memory-less effect, these advantages so that the application range of lithium ion battery is more and more extensive.It is right at those
The higher occasion of battery electrical property, reliability, security requirement, such as Aeronautics and Astronautics and military field, lithium ion battery also by
Gradually become a star.
Lithium ion battery hydrophobic electrolyte liquid is mainly formed in organic solvent by electrolyte salt dissolving, conventional electrolysis
Liquid conductivity is general, and when proposing high requirement to battery cryogenic property, conventional electrolysis liquid cannot make its battery material function most
Optimization, therefore its cryogenic property is poor, lithium battery discharge performance is worse at -40 DEG C or can not put electricity.This causes current lithium
The cryogenic property of ion battery, the working performance particularly in ultra-low temperature surroundings is poor, seriously inhibits it special at these
The application in field.
The Chinese invention patent of Publication No. CN103825049B discloses a kind of lithium-ion electric pool high temperature resistant electrolyte,
In be added to high temperature resistant additive difluorine oxalic acid boracic acid lithium, account for the 0.1%-8% of electrolyte gross mass, the lithium which prepares
The better performances of ion battery at high temperature, 200 weeks circulation volumes are 70% or so at 60 DEG C, but the electrolyte is low temperature resistant
Performance is general, it is impossible to the needs of meeting battery at low temperature.
Invention content
The object of the present invention is to provide a kind of lithium-ion battery electrolytes additive, which can improve lithium-ion electric
Liquid is solved in low temperature, ultralow temperature performance.
The present invention also provides a kind of lithium-ion battery electrolytes, electrolyte tolerance high temperature and ultralow temperature.
The present invention also provides the lithium ion batteries prepared using above-mentioned lithium-ion battery electrolytes.
To achieve these goals, technical solution is used by the application：
A kind of lithium-ion battery electrolytes additive, including ethylene carbonate, sulfuric acid vinyl ester and three (trimethyl silanes)
Borate；The mass ratio of the ethylene carbonate, sulfuric acid vinyl ester and three (trimethyl silane) borates is 1~20：1~20：1
~20.
Ethylene carbonate, sulfuric acid vinyl ester and three (trimethyl silicanes are selected in lithium ion battery additive provided by the invention
Alkane) good, low into the membrane impedance component of thermal stability such as borate, ethylene carbonate, sulfuric acid in the compound cryosar additive of addition
Vinyl acetate can improve the conductivity of lithium-ion electrolyte under low temperature and ultralow temperature, and three (trimethyl silane) borates can be protected just
The high-temperature behavior of battery is improved in pole, can form protective film in positive electrode surface, anode is prevented to be in direct contact with electrolyte and is reacted
It decomposes, the stability of positive electrode is improved, so as to improve the high-temperature behavior of battery.
A kind of lithium-ion battery electrolytes, including solvent, electrolytic salt and additive, the additive includes ethylene carbonate
Ester, sulfuric acid vinyl ester and three (trimethyl silane) borates；The ethylene carbonate, sulfuric acid vinyl ester and three (trimethyl silanes)
The mass ratio of borate is 1~20：1~20：1~20.The ethylene carbonate, sulfuric acid vinyl ester and three (trimethyl silane) boron
The addition of acid esters is respectively the 0.1~2.0% of solvent quality.
The effect of electrolyte is that lithium ion transmission is carried out between inside battery positive and negative electrode, the electrolyte that the present invention uses
For super low-temperature resistant Jian Gu Xing electrolyte, influence of the electrolyte to cryogenic property is mainly reflected in its conductivity and solid electrolyte phase
The influence of interface SEI films.The present invention by be separately added into electrolyte suitable film for additive VC (ethylene carbonate),
After DTD (sulfuric acid vinyl ester) and three (trimethyl silane) borates (TMSB), SEI film resistances are reduced, three's synergistic effect makes
The cryogenic property for obtaining battery is greatly improved.
Preferably, the addition of the ethylene carbonate, sulfuric acid vinyl ester and three (trimethyl silane) borates is respectively
0.3%, 0.8%, the 0.5% of solvent quality.
Electrolytic salt described in electrolytic salt in the electrolyte of the present invention is lithium hexafluoro phosphate and/or double fluorine sulfimides
Lithium.Preferred electrolytic salt is lithium hexafluoro phosphate and double fluorine sulfimide lithiums, the lithium hexafluoro phosphate and double fluorine sulfimide lithiums
Molar ratio be (0.7~1.0)：(0.15~0.35).More preferably, the lithium hexafluoro phosphate and double fluorine sulfimide lithiums
Molar ratio is 8：2.The additive amount of the lithium hexafluoro phosphate is 0.6-1.2mol/L.Preferably, the addition of the lithium hexafluoro phosphate
It measures as 1.0mol/L.The electrolytic salt price that lithium hexafluoro phosphate and double fluorine sulfimide lithiums are formed is relatively cheap, while causes electricity
The high temperature resistance of solution liquid is also improved.
The solvent includes propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat；It is described
Propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat mass ratio be (1.0~3.0)：(1.0
~2.0)：(1.0~3.0)：(3.0~6.0).Preferably, the propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic acid
Fat, carbovinate fat mass ratio be 2：1：2：5.The linear molecule and carboxylate of low melting point, low viscosity are selected in the application
Class solvent is electrolysed fluid viscosity to reduce under low temperature.
Lithium ion battery made from above-mentioned lithium-ion battery electrolytes.
The lithium ion battery of the present invention can take into account performance under low temperature, the condition of high temperature, discharge and hold in -20 DEG C of low temperature environments
Amount reaches the 85% of initial capacity, and battery discharge capacity in -40 DEG C of low temperature environments reaches the 75% of initial capacity；Using this hair
The battery of bright electrolyte also is able to tolerance hot environment, and 85% is kept in 55 DEG C of 28 tankages of storage of high temperature.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail.
Embodiment 1
Lithium-ion battery electrolytes additive in the present embodiment is by ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silicanes
Alkane) borate composition, the ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silane) borates mass ratio be 3：8：5.
Electrolyte in the present embodiment includes：Above-mentioned additive, solvent and electrolytic salt, the solvent are by mass ratio
2：1：2：5 propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；The electrolytic salt
For lithium hexafluoro phosphate and double fluorine sulfimide lithiums, molar ratio is=8：2, LiPF6For a concentration of 1.0mol/L；The carbonic acid second
Alkene fat, sulfuric acid vinyl ester, three (trimethyl silane) borates, the addition of three be respectively electrolyte quality 0.3%, 0.8%,
0.5%.
Lithium ion battery in the present embodiment is made by above-mentioned electrolyte, wherein the positive plate of battery by nickle cobalt lithium manganate,
Binding agent PVDF, conductive agent SP and CNTs conjunction slurry, coating, roll-in, cutting are made；Negative plate by graphite, binding agent LA133 and
CMC, conductive agent SP conjunction slurry, coating, roll-in, cutting are made.
Embodiment 2
Lithium-ion battery electrolytes additive in the present embodiment is by ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silicanes
Alkane) borate composition, the ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silane) borates mass ratio be 5：10：1.
Electrolyte in the present embodiment includes：Above-mentioned additive, solvent and electrolytic salt, the solvent are by mass ratio
2：1.5：1.5：5.0 propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；The electricity
Matter salt is solved as lithium hexafluoro phosphate and double fluorine sulfimide lithiums, molar ratio is=10：1, LiPF6For a concentration of 1.1mol/L；Institute
Ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silane) borates are stated, the addition of three is respectively electrolyte quality
0.5%th, 1.0%, 0.1%.
Lithium ion battery in the present embodiment is made by above-mentioned electrolyte.The preparation of anode and cathode is as described in Example 1.
Embodiment 3
Lithium-ion battery electrolytes additive in the present embodiment is by ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silicanes
Alkane) borate composition, the ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silane) borates mass ratio be 2：10：2.
Electrolyte in the present embodiment includes：Above-mentioned additive, solvent and electrolytic salt, the solvent are by mass ratio
1：1：1：3 propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；The electrolytic salt
For lithium hexafluoro phosphate and double fluorine sulfimide lithiums, molar ratio is=7：1.5, LiPF6For a concentration of 1.2mol/L；The carbonic acid
Ethylene fat, sulfuric acid vinyl ester, three (trimethyl silane) borates, the addition of three be respectively electrolyte quality 0.2%,
1.0%th, 2.0%.
Lithium ion battery in the present embodiment is made by above-mentioned electrolyte.The preparation of anode and cathode is as described in Example 1.
Embodiment 4
Lithium-ion battery electrolytes additive in the present embodiment is by ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silicanes
Alkane) borate composition, the ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silane) borates mass ratio be 20：15：
5。
Electrolyte in the present embodiment includes：Above-mentioned additive, solvent and electrolytic salt, the solvent are by mass ratio
3：2：3：3 propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；The electrolytic salt
For lithium hexafluoro phosphate and double fluorine sulfimide lithiums, molar ratio is=10：3.5, LiPF6For a concentration of 0.6mol/L；The carbon
Sour ethylene fat, sulfuric acid vinyl ester, three (trimethyl silane) borates, the addition of three be respectively electrolyte quality 2.0%,
1.5%th, 0.5%.
Lithium ion battery in the present embodiment is made by above-mentioned electrolyte.The preparation of anode and cathode is as described in Example 1.
Comparative example 1
This comparative example be commercially available 5Ah soft bag lithium ionic cells, electrolyte be general electrolytic liquid, by lithium hexafluoro phosphate,
Propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；Just extremely nickle cobalt lithium manganate, cathode
For graphite.
Comparative example 2
Electrolyte in this comparative example includes：Solvent and electrolytic salt, the solvent are 2 by mass ratio：1：2：5 carbonic acid
Acrylic ester, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；The electrolytic salt is lithium hexafluoro phosphate
With double fluorine sulfimide lithiums, molar ratio is=8：2 electrolytic salts, LiPF6For a concentration of 1.0mol/L.
Lithium ion battery in this comparative example is made by above-mentioned electrolyte.The preparation of anode and cathode is as described in Example 1.
Comparative example 3
Lithium-ion battery electrolytes additive in this comparative example is made of ethylene carbonate, sulfuric acid vinyl ester, the carbon
Sour ethylene fat, sulfuric acid vinyl ester mass ratio be 3：8.
Electrolyte in this comparative example includes：Above-mentioned additive, solvent and electrolytic salt, the solvent are by mass ratio
2：1：2：5 propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；The electrolytic salt
For lithium hexafluoro phosphate and double fluorine sulfimide lithiums, molar ratio is=8：2 electrolytic salts, LiPF6For a concentration of 1.0mol/L；Institute
Ethylene carbonate, sulfuric acid vinyl ester are stated, the addition of the two is respectively electrolyte quality 0.3%, 0.8%.
Lithium ion battery in this comparative example is made by above-mentioned electrolyte.The preparation of anode and cathode is as described in Example 1.
Comparative example 4
Lithium-ion battery electrolytes additive in this comparative example is by ethylene carbonate, three (trimethyl silane) borate groups
Mass ratio into, the ethylene carbonate, three (trimethyl silane) borates is 3：5.
Electrolyte in this comparative example includes：Above-mentioned additive, solvent and electrolytic salt, the solvent are by mass ratio
2：1：2：5 propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；The electrolytic salt
For lithium hexafluoro phosphate and double fluorine sulfimide lithiums, molar ratio is=8：2 electrolytic salts, LiPF6For a concentration of 1.0mol/L；Institute
Ethylene carbonate, three (trimethyl silane) borates are stated, addition is respectively electrolyte quality 0.3%, 0.5%.
Lithium ion battery in this comparative example is made by above-mentioned electrolyte.The preparation of anode and cathode is as described in Example 1.
Comparative example 5
Lithium-ion battery electrolytes additive in this comparative example is by sulfuric acid vinyl ester, three (trimethyl silane) borate groups
Mass ratio into, the sulfuric acid vinyl ester, three (trimethyl silane) borates is 8：5.
Electrolyte in this comparative example includes：Above-mentioned additive, solvent and electrolytic salt, the solvent are by mass ratio
2：1：2：5 propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；The electrolytic salt
For lithium hexafluoro phosphate and double fluorine sulfimide lithiums, molar ratio is=8：2 electrolytic salts, LiPF6For a concentration of 1.0mol/L；Institute
Sulfuric acid vinyl ester, three (trimethyl silane) borates are stated, addition is respectively electrolyte quality 0.8%, 0.5%.
Lithium ion battery in this comparative example is made by above-mentioned electrolyte.The preparation of anode and cathode is as described in Example 1.
Comparative example 6
Lithium-ion battery electrolytes additive in this comparative example is by ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silicanes
Alkane) borate composition, the ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silane) borates mass ratio be 3：8：5.
Electrolyte in this comparative example includes：Above-mentioned additive, solvent and electrolytic salt, the solvent are by mass ratio
2：1：2：5 propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；The electrolytic salt
For lithium hexafluoro phosphate, LiPF6For a concentration of 1.0mol/L；The ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silane) boron
Acid esters, the addition of three is respectively electrolyte quality 0.3%, 0.8%, 0.5%.
Lithium ion battery in this comparative example is made by above-mentioned electrolyte.The preparation of anode and cathode is as described in Example 1.
Comparative example 7
Lithium-ion battery electrolytes additive in this comparative example is by ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silicanes
Alkane) borate composition, the ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silane) borates mass ratio be 3：8：5.
Electrolyte in this comparative example includes：Above-mentioned additive, solvent and electrolytic salt, the solvent are by mass ratio
2：1：2：5 propene carbonate, dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat composition；The electrolytic salt
For double fluorine sulfimide lithiums, a concentration of 0.25mol/L；The ethylene carbonate, sulfuric acid vinyl ester, three (trimethyl silane) boron
Acid esters, the addition of three is respectively electrolyte quality 0.3%, 0.8%, 0.5%.
Lithium ion battery in this comparative example is made by above-mentioned electrolyte.The preparation of anode and cathode is as described in Example 1.
Test example
Embodiment 1-4, comparative example the 1-7 battery prepared are stored under the conditions of -20 DEG C ± 2 DEG C, -40 DEG C ± 2 DEG C respectively
12h, then at the same temperature, with 1C constant-current discharges to final voltage (2.1V), the discharge capacity for detecting each battery reaches
The percentage of initial capacity；The conservation rate that each battery stores 28 days battery capacities at 55 DEG C is detected, the results are shown in Table 1.
The discharge capacity of 1 each battery of table
| - 20 DEG C, 12h | - 40 DEG C, 12h | 55 DEG C, 28 days | |
| Embodiment 1 | 85% | 75% | 85% |
| Embodiment 2 | 83.2% | 71.8% | 83.2% |
| Embodiment 3 | 84.8% | 73.8% | 84.6% |
| Embodiment 4 | 84% | 73.6% | 84.2% |
| Comparative example 1 | 65.3% | 57.4% | 68.5% |
| Comparative example 2 | 68.6% | 65% | 66.4% |
| Comparative example 3 | 76.3% | 68.3% | 66% |
| Comparative example 4 | 75.6% | 67% | 67.6% |
| Comparative example 5 | 76% | 68% | 70% |
| Comparative example 6 | 80.1% | 70.2% | 70.4% |
| Comparative example 7 | 80.2% | 70.1% | 80.2% |
As can be seen from the above table added with the present invention additive electrolyte prepared by lithium ion battery low temperature (-
20 DEG C), ultralow temperature (- 40 DEG C), the discharge capacity under high temperature (55 DEG C) be apparently higher than comparative example, battery has preferable resistance to height
Temperature, resistance to low temperature.
Claims (10)
1. a kind of lithium-ion battery electrolytes additive, it is characterised in that：Including ethylene carbonate, sulfuric acid vinyl ester and three (three
Methyl-monosilane) borate；The mass ratio of the ethylene carbonate, sulfuric acid vinyl ester and three (trimethyl silane) borates for 1~
20：1~20：1~20.
2. a kind of lithium-ion battery electrolytes, it is characterised in that：Including solvent, electrolytic salt and additive, the additive packet
Include ethylene carbonate, sulfuric acid vinyl ester and three (trimethyl silane) borates；The ethylene carbonate, sulfuric acid vinyl ester and three
The mass ratio of (trimethyl silane) borate is 1~20：1~20：1~20.
3. lithium-ion battery electrolytes according to claim 2, it is characterised in that：The ethylene carbonate, sulfuric acid ethylene
The addition of ester and three (trimethyl silane) borates is respectively 0.3%, 0.8%, the 0.5% of solvent quality.
4. lithium-ion battery electrolytes according to claim 2, it is characterised in that：The electrolytic salt is lithium hexafluoro phosphate
And/or double fluorine sulfimide lithiums.
5. lithium-ion battery electrolytes according to claim 4, it is characterised in that：The electrolytic salt is lithium hexafluoro phosphate
With double fluorine sulfimide lithiums, the molar ratio of the lithium hexafluoro phosphate and double fluorine sulfimide lithiums is (0.7~1.0)：(0.15~
0.35)。
6. lithium-ion battery electrolytes according to claim 4, it is characterised in that：The additive amount of the lithium hexafluoro phosphate is
0.6-1.2mol/L。
7. lithium-ion battery electrolytes according to claim 6, it is characterised in that：The additive amount of the lithium hexafluoro phosphate is
1.0mol/L。
8. lithium-ion battery electrolytes according to claim 2, it is characterised in that：The solvent include propene carbonate,
Dimethyl carbonic ether, ethyl-methyl carbonic ether, carbovinate fat；The propene carbonate, dimethyl carbonic ether, ethyl-methyl
Carbonic ether, carbovinate fat mass ratio be (1.0~3.0)：(1.0~2.0)：(1.0~3.0)：(3.0~6.0).
9. lithium-ion battery electrolytes according to claim 2, it is characterised in that：The propene carbonate, dimethyl carbon
Sour fat, ethyl-methyl carbonic ether, carbovinate fat mass ratio be 2：1：2：5.
10. the lithium ion battery as made from claim 2-9 any one of them lithium-ion battery electrolytes.
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| CN110931863A (en) * | 2019-11-12 | 2020-03-27 | 深圳市比克动力电池有限公司 | Additive for battery electrolyte, lithium ion battery electrolyte and lithium ion battery |
| CN111029656A (en) * | 2019-12-23 | 2020-04-17 | 杉杉新材料（衢州）有限公司 | Lithium ion battery non-aqueous electrolyte and lithium ion battery thereof |
| CN112271338A (en) * | 2020-11-27 | 2021-01-26 | 凯博能源科技有限公司 | Electrolyte and lithium ion battery containing same |
| CN112909341A (en) * | 2021-01-11 | 2021-06-04 | 电子科技大学 | Lithium ion battery electrolyte, preparation method thereof, lithium ion battery and electric vehicle |
| WO2024077765A1 (en) * | 2022-10-14 | 2024-04-18 | 欣旺达动力科技股份有限公司 | Secondary battery and use thereof |
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Address after: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: Kaibo Energy Technology Co.,Ltd. Address after: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee after: Kaibo Energy Technology Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY RESEARCH INSTITUTE Co.,Ltd. |
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