CN101847752A - Additive of electrolytic solution of lithium ion battery - Google Patents
Additive of electrolytic solution of lithium ion battery Download PDFInfo
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- CN101847752A CN101847752A CN201010186547A CN201010186547A CN101847752A CN 101847752 A CN101847752 A CN 101847752A CN 201010186547 A CN201010186547 A CN 201010186547A CN 201010186547 A CN201010186547 A CN 201010186547A CN 101847752 A CN101847752 A CN 101847752A
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- additive
- ion battery
- organic substance
- lithium
- battery
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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 invention discloses an additive of electrolytic solution of a lithium ion battery. The additive is an estolide type organic substance. The estolide type organic substance is one kind or several kinds of materials in dicarboxylic anhydride, phthalic anhydride and propionic andydride. Because the additive is the estolide type organic substance, the compound gas can be converted into liquid or solid substances through chemical reactions. Thereby, the problems of gas bubbling and gas expansion of the battery can be solved, and the stable performance and the safety performance of the battery can be improved.
Description
Technical field
The present invention relates to a kind of additive of lithium ion battery liquid electrolyte.
Background technology
Lithium ion battery owing to the reaction of electrolyte and carbon negative pole, can produce alcohol, alkene accordingly when changing into.The electrolyte of carbonic ester is often followed the reduzate of multiple gases in electrode initial charge process, as CO2, CO, H2, CH2CH2 and CH3CH2CH2.The gas that produces causes battery tympanites inflatable in addition easily, and battery also can produce gas in charge and discharge process, causes battery tympanites inflatable, and there is bigger infringement the structure and the chemical system aspect of battery.
Summary of the invention
The technical problem that the present invention need solve is to reduce lithium ion battery changing into generation gas, further improves the lithium ion battery security energy.
The technical problem to be solved in the present invention is achieved through the following technical solutions: a kind of additive of lithium-ion battery electrolytes is characterized in that: described additive is the anhydrides organic substance.Described anhydrides organic substance is one or more in dicarboxylic anhydride, phthalic anhydride, the propionic andydride.
Further: at the additive of above-mentioned lithium-ion battery electrolytes,
The structural formula of described dicarboxylic anhydride is:
The structural formula of phthalic anhydride is:
The structural formula of propionic andydride is:
Further again: in the additive of above-mentioned lithium-ion battery electrolytes, the percentage by weight that the amount of described additive accounts for used electrolyte is 1%-5%.
Compared with prior art, the lithium-ion battery electrolytes additive is the anhydrides organic substance, and is as in succinic anhydride, phthalic anhydride, the propionic andydride one or both, perhaps whole.Because this additive is the anhydrides material, can convert formation gas to the liquid or solid material by chemical reaction.Thereby solve the problem of battery tympanites and inflatable.Gas when being added with the electrolyte of this additive and the electrolyte that does not add this additive specific energy obviously reducing battery and changes into mutually, cell package also can reduce the risk that the air-blowing of battery circulating air is expanded later on, thereby improves the stability and the security performance of battery.
Embodiment
Purport of the present invention is that this additive can convert formation gas to the liquid or solid material by chemical reaction at the additive of selecting suitable anhydrides organic substance as lithium ion battery liquid electrolyte.Thereby solve the problem of battery tympanites and inflatable.
Below in conjunction with embodiment content of the present invention is described in further detail, mentioned content is not a limitation of the invention in the execution mode, and the selection of parameter can be suited measures to local conditions and the result be there is no substantial effect among the preparation method.
At first, the basic scheme of summary material prescription of the present invention: a kind of additive of lithium-ion battery electrolytes is characterized in that: described additive is the anhydrides organic substance.Described anhydrides organic substance is one or more in dicarboxylic anhydride, phthalic anhydride, the propionic andydride.The percentage by weight that the amount of additive accounts for used electrolyte is 1%-5%
Embodiment
A kind of additive of lithium-ion battery electrolytes, described additive are one or more in dicarboxylic anhydride, phthalic anhydride, the propionic andydride.
The structural formula of described dicarboxylic anhydride is:
The structural formula of phthalic anhydride is:
The structural formula of propionic andydride is:
This additive in adding in the lithium-ion battery electrolytes of same kind, it selects kind and addition shown in 1-12 number prescription of table 1.The electric core that the electrolyte of gained is fed into same model is respectively made 12 groups of experiment products electricity cores, and 20 in every group of electricity core pours into one group of not contrast experiment's product of doping electrolyte simultaneously again, equally also is 20 electric cores.Behind these experiment products while forming and capacity dividings, put into 85 ℃ of baking oven bakings 4 hours, the air-blowing situation of electricity core and voltage tester situation are shown in the 1-12 test case of table 2, and No. 13 of table 2 is the test result of contrast experiment's product under equal test condition of not doping electrolyte gained.Find out the situation that additive is arranged from the test result of table 2, the ratio that electric core air-blowing is expanded reduces a lot, and electric core fraction defective reduces, and when the additive capacity that reaches 3%, the ratio that electric core air-blowing is expanded is reduced to 0, and electric core no-voltage quantity is 0.Electricity core no-voltage situation is that electric core is pressed in the gas under hot conditions and increased, and when interior pressure surpassed electric core safety guard, protective device can make automatically and anodally come off with the shell block, causes electric core to show as 0 voltage.
The concrete material of table 1, additive and the addition (percentage by weight) in electrolyte
Table 2, experimental result
| Sequence number | Additives ratio | Electricity core air-blowing (PCS of unit) | Electricity core test case defect ratio |
| ??1 | ??1％ | ??8 | 8PCS electricity core no-voltage 40% |
| ??2 | ??2％ | ??5 | 5PCS electricity core no-voltage 250% |
| ??3 | ??5％ | ??3 | 3PCS electricity core no-voltage 15% |
| ??4 | ??2％ | ??3 | 3PCS electricity core no-voltage 15% |
| ??5 | ??3％ | ??0 | 0PCS electricity core no-voltage 0% |
| ??6 | ??4％ | ??2 | 2PCS electricity core no-voltage 10% |
| Sequence number | Additives ratio | Electricity core air-blowing (PCS of unit) | Electricity core test case defect ratio |
| ??7 | ??3％ | ??0 | 0PCS electricity core no-voltage 0% |
| ??8 | ??2％ | ??1 | 1PCS electricity core no-voltage 5% |
| ??9 | ??5％ | ??5 | 5PCS electricity core no-voltage 25% |
| ??10 | ??3％ | ??0 | 0PCS electricity core no-voltage 0% |
| ??11 | ??5％ | ??5 | 5PCS electricity core no-voltage 25% |
| ??12 | ??3％ | ??0 | OPCS electricity core no-voltage 0% |
| ??13 | Additive-free | ??15 | 15PCS electricity core no-voltage 75% |
Claims (4)
1. the additive of a lithium-ion battery electrolytes, it is characterized in that: described additive is the anhydrides organic substance.
2. the additive of lithium-ion battery electrolytes according to claim 1, it is characterized in that: described anhydrides organic substance is one or more in dicarboxylic anhydride, phthalic anhydride, the propionic andydride.
3. the additive of lithium-ion battery electrolytes according to claim 2, it is characterized in that: the structural formula of described dicarboxylic anhydride is:
The structural formula of phthalic anhydride is:
The structural formula of propionic andydride is:
4. the additive of lithium-ion battery electrolytes according to claim 31, it is characterized in that: the percentage by weight that the amount of described additive accounts for used electrolyte is 1%-5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010186547A CN101847752A (en) | 2010-05-26 | 2010-05-26 | Additive of electrolytic solution of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010186547A CN101847752A (en) | 2010-05-26 | 2010-05-26 | Additive of electrolytic solution of lithium ion battery |
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| CN101847752A true CN101847752A (en) | 2010-09-29 |
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| CN201010186547A Pending CN101847752A (en) | 2010-05-26 | 2010-05-26 | Additive of electrolytic solution of lithium ion battery |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618106A (en) * | 2013-10-14 | 2014-03-05 | 厦门大学 | Electrolyte for preventing lithium titanate battery flatulence, and lithium titanate battery |
| CN104241685A (en) * | 2014-09-22 | 2014-12-24 | 张家港市国泰华荣化工新材料有限公司 | Anti-overcharging lithium ion battery electrolyte |
| CN104393342A (en) * | 2014-11-07 | 2015-03-04 | 中国海洋石油总公司 | Method for reducing electrochemical impedance of lithium-ion battery |
| CN106299469A (en) * | 2015-05-14 | 2017-01-04 | 天津金牛电源材料有限责任公司 | A kind of adding method of lithium-ion battery electrolytes organic solid additive |
| CN107887647A (en) * | 2017-10-26 | 2018-04-06 | 广州天赐高新材料股份有限公司 | A kind of 5V high voltages electrolyte for lithium secondary batteries and the lithium secondary battery containing the electrolyte |
| CN110931861A (en) * | 2018-09-20 | 2020-03-27 | 丰田自动车株式会社 | Nonaqueous electrolyte for lithium ion secondary battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1465117A (en) * | 2001-07-10 | 2003-12-31 | 三菱化学株式会社 | Non aqueous electrolyte and secondary cell using the same |
| CN1917273A (en) * | 2005-08-16 | 2007-02-21 | 比亚迪股份有限公司 | Non-aqueous electrolyte, secondary lithium ion battery of containing the electrolyte, and its preparation method |
| CN101606267A (en) * | 2007-03-16 | 2009-12-16 | 日立麦克赛尔株式会社 | Nonaqueous electrolytic solution and nonaqueous electrolytic solution secondary battery |
-
2010
- 2010-05-26 CN CN201010186547A patent/CN101847752A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1465117A (en) * | 2001-07-10 | 2003-12-31 | 三菱化学株式会社 | Non aqueous electrolyte and secondary cell using the same |
| CN1917273A (en) * | 2005-08-16 | 2007-02-21 | 比亚迪股份有限公司 | Non-aqueous electrolyte, secondary lithium ion battery of containing the electrolyte, and its preparation method |
| CN101606267A (en) * | 2007-03-16 | 2009-12-16 | 日立麦克赛尔株式会社 | Nonaqueous electrolytic solution and nonaqueous electrolytic solution secondary battery |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618106A (en) * | 2013-10-14 | 2014-03-05 | 厦门大学 | Electrolyte for preventing lithium titanate battery flatulence, and lithium titanate battery |
| CN104241685A (en) * | 2014-09-22 | 2014-12-24 | 张家港市国泰华荣化工新材料有限公司 | Anti-overcharging lithium ion battery electrolyte |
| CN104393342A (en) * | 2014-11-07 | 2015-03-04 | 中国海洋石油总公司 | Method for reducing electrochemical impedance of lithium-ion battery |
| CN106299469A (en) * | 2015-05-14 | 2017-01-04 | 天津金牛电源材料有限责任公司 | A kind of adding method of lithium-ion battery electrolytes organic solid additive |
| CN106299469B (en) * | 2015-05-14 | 2018-10-12 | 天津金牛电源材料有限责任公司 | A kind of adding method of lithium-ion battery electrolytes organic solid additive |
| CN107887647A (en) * | 2017-10-26 | 2018-04-06 | 广州天赐高新材料股份有限公司 | A kind of 5V high voltages electrolyte for lithium secondary batteries and the lithium secondary battery containing the electrolyte |
| CN107887647B (en) * | 2017-10-26 | 2020-08-11 | 广州天赐高新材料股份有限公司 | Electrolyte for 5V high-voltage lithium secondary battery and lithium secondary battery containing electrolyte |
| CN110931861A (en) * | 2018-09-20 | 2020-03-27 | 丰田自动车株式会社 | Nonaqueous electrolyte for lithium ion secondary battery |
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Application publication date: 20100929 |