CN105633458A - Electrolyte of power lithium battery - Google Patents
Electrolyte of power lithium battery Download PDFInfo
- Publication number
- CN105633458A CN105633458A CN201410604691.6A CN201410604691A CN105633458A CN 105633458 A CN105633458 A CN 105633458A CN 201410604691 A CN201410604691 A CN 201410604691A CN 105633458 A CN105633458 A CN 105633458A
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- Prior art keywords
- electrolyte
- lithium battery
- battery according
- dynamic lithium
- organic solvent
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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
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Abstract
The invention discloses an electrolyte of a power lithium battery. The electrolyte of the lithium battery comprises by weight: 7-14% of conductive lithium salt, 8-12% of acetylene black, 30-40% of positive active substance, 15-20% of organic solvent, 5-15% of additive, 15-20% of isopropyl alcohol, 0.6-2.4% of carbon nanotubes, 12-16% of polytetrafluoroethylene emulsion with the concentration of 60%, 1.8-4.6% of adhesive and 5-8% of calcium metal halide. An organic compound is added into the ordinary electrolyte of the lithium ion battery as the additive in an amount of 1-10% the weight of the electrolyte and is compounded with the conductive lithium salt and the organic solvent, so that excellent high-temperature circulation performance is obtained, the battery capacity can be improved greatly, the rate performance of the electrolyte also can be further improved, and the electrolyte is used on conditions of a low temperature, medium-rate discharging and high-rate discharging.
Description
Technical field
The present invention relates to lithium battery production field, especially the electrolyte of dynamic lithium battery.
Background technology
Since the nineties in 20th century, as a new technique, the exploitation of hybrid vehicle obtains the great attention of many developed countries and regions, and achieves some great achievement and progress. As taken no action to, thing followed energy problem, environmental problem, traffic problems and health problem are by than now serious many. Therefore constantly improve power lithium-ion battery, with electrokinetic technique, the energy and environment problem alleviating China and the whole world all will be had important society and strategic importance. Existing lithium ion battery, owing to using traditional conductive agent, make its electric conductivity poor, the capacity of battery is also smaller, using conventional conductive agent, the discharge-rate of battery is maximum can only accomplish 20C, additionally at charge and discharge process, the impact of cell active materials structure is very big, active substance is structural instability in charge and discharge process, and the cycle performance of battery reduces.
It is an object of the invention to provide the electrolyte of dynamic lithium battery, the technical solution used in the present invention is: the electrolyte of dynamic lithium battery, and this lithium battery electrolytes composition by weight percent is: electric conducting lithium salt 7-14%, acetylene black 8-12%, positive active material 30-40%, organic solvent 15-20%, additive 5-15%, isopropanol 15-20%, CNT 0.6-2.4%, concentration is the ptfe emulsion 12-16% of 60%, bonding agent 1.8-4.6%, calcium metal halide 5-8%.
The present invention designs simply, common lithium-ion battery electrolytes adds organic compound as additive, and the 1-10% that the addition of organic compound is lithium-ion electrolyte weight, chemical compounding is carried out with electric conducting lithium salt and organic solvent, there is good high temperature cyclic performance, the capacity of battery can be largely increased, and its times forthright also can be improved further, and can use when low temperature and middle and high multiplying power discharging.
Detailed description of the invention
Below in conjunction with specific embodiment, the detailed description of the invention of invention is further described.
Embodiment 1:
The electrolyte of dynamic lithium battery, this lithium battery electrolytes composition by weight percent is: electric conducting lithium salt 7%, acetylene black 8%, positive active material 30%, organic solvent 15%, additive 5%, isopropanol 15%, CNT 0.6%, concentration is the ptfe emulsion 12% of 60%, bonding agent 1.8%, calcium metal halide 5%.
Through contrasting with former scheme, the program adds organic compound as additive in common lithium-ion battery electrolytes, and the 1-10% that the addition of organic compound is lithium-ion electrolyte weight, chemical compounding is carried out with electric conducting lithium salt and organic solvent, there is good high temperature cyclic performance, the capacity of battery can be largely increased, and its times forthright also can be improved further, and can use when low temperature and middle and high multiplying power discharging.
Embodiment 2:
The electrolyte of dynamic lithium battery, this lithium battery electrolytes composition by weight percent is: electric conducting lithium salt 14%, acetylene black 12%, positive active material 40%, organic solvent 20%, additive 15%, isopropanol 20%, CNT 2.4%, concentration is the ptfe emulsion 16% of 60%, bonding agent 4.6%, calcium metal halide 8%.
Through contrasting with former scheme, the program adds organic compound as additive in common lithium-ion battery electrolytes, and the 1-10% that the addition of organic compound is lithium-ion electrolyte weight, chemical compounding is carried out with electric conducting lithium salt and organic solvent, there is good high temperature cyclic performance, the capacity of battery can be largely increased, and its times forthright also can be improved further, and can use when low temperature and middle and high multiplying power discharging.
Claims (6)
1. the electrolyte of dynamic lithium battery, it is characterized in that: described lithium battery electrolytes composition by weight percent is: electric conducting lithium salt 7-14%, acetylene black 8-12%, positive active material 30-40%, organic solvent 15-20%, additive 5-15%, isopropanol 15-20%, CNT 0.6-2.4%, concentration is the ptfe emulsion 12-16% of 60%, bonding agent 1.8-4.6%, calcium metal halide 5-8%.
2. the electrolyte of dynamic lithium battery according to claim 1, it is characterised in that: described organic solvent is the mixture of one or more of ethylene carbonate, Allyl carbonate, dimethyl carbonate.
3. the electrolyte of dynamic lithium battery according to claim 1, it is characterised in that: described lithium battery includes anode portion and cathode portion, and described anode portion includes positive active material, CNT, bonding agent.
4. the electrolyte of dynamic lithium battery according to claim 1, it is characterized in that: when described acetylene black is by calcium carbide route or Petroleum (raw gasoline) pyrolysis, manufacture gas decomposes the acetylene of the refining purity more than 99% obtained, the white carbon black obtained after continuous pyrolysis.
5. the electrolyte of dynamic lithium battery according to claim 1, it is characterised in that: the features such as described bonding agent refers to the technology that homogeneity or heterogeneous body surface are connected together with an adhesive, and has stress distribution continuous, lightweight, or seals, and most technological temperatures are low.
6. the electrolyte of dynamic lithium battery according to claim 1, it is characterised in that: described calcium metal halide is calcium chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604691.6A CN105633458A (en) | 2014-10-30 | 2014-10-30 | Electrolyte of power lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604691.6A CN105633458A (en) | 2014-10-30 | 2014-10-30 | Electrolyte of power lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105633458A true CN105633458A (en) | 2016-06-01 |
Family
ID=56048160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410604691.6A Pending CN105633458A (en) | 2014-10-30 | 2014-10-30 | Electrolyte of power lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105633458A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887644A (en) * | 2017-11-09 | 2018-04-06 | 安徽智森电子科技有限公司 | A kind of electrolyte of lithium battery |
| WO2023108661A1 (en) * | 2021-12-17 | 2023-06-22 | 微宏先进材料公司 | Non-aqueous electrolyte and lithium ion secondary battery |
-
2014
- 2014-10-30 CN CN201410604691.6A patent/CN105633458A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887644A (en) * | 2017-11-09 | 2018-04-06 | 安徽智森电子科技有限公司 | A kind of electrolyte of lithium battery |
| WO2023108661A1 (en) * | 2021-12-17 | 2023-06-22 | 微宏先进材料公司 | Non-aqueous electrolyte and lithium ion secondary battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |
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| WD01 | Invention patent application deemed withdrawn after publication |