CN107968222A - Lithium-ion battery electrolytes additive containing inorganic matter - Google Patents

Lithium-ion battery electrolytes additive containing inorganic matter Download PDF

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Publication number
CN107968222A
CN107968222A CN201711047027.6A CN201711047027A CN107968222A CN 107968222 A CN107968222 A CN 107968222A CN 201711047027 A CN201711047027 A CN 201711047027A CN 107968222 A CN107968222 A CN 107968222A
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China
Prior art keywords
weight
parts
lithium
ion battery
containing inorganic
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CN201711047027.6A
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Chinese (zh)
Inventor
方杰敏
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Guilin Lijiang Electromechanical Manufacturing Co Ltd
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Guilin Lijiang Electromechanical Manufacturing Co Ltd
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Priority to CN201711047027.6A priority Critical patent/CN107968222A/en
Publication of CN107968222A publication Critical patent/CN107968222A/en
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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
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0025—Organic electrolyte
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Secondary Cells (AREA)

Abstract

The present invention relates to a kind of lithium-ion battery electrolytes additive containing inorganic matter, including：Carbonate solvent, aluminium oxide, magnesia, silica, dimethylacetylamide, hexafluorophosphoric acid lithium salts, vinylene carbonate, ethylene sulfite, lithium perchlorate, diethanol amine, tetrabutylammonium bromide.Lithium-ion battery electrolytes additive containing inorganic matter provided according to the present invention and preparation method thereof, by reasonably matching and each component can improve the charge-discharge performance of electrolyte, the problems such as preventing the anode surface oxidation of electrolyte under high voltages from decomposing with the change of positive electrode pattern, structure collapses, extend the service life of battery.

Description

Lithium-ion battery electrolytes additive containing inorganic matter
Technical field
The present invention relates to a kind of lithium-ion battery electrolytes additive containing inorganic matter.
Background technology
Lithium ion battery is as a kind of novel green high-energy battery, because with operating voltage is high, specific capacity is big, cycle life It is long, self-discharge rate is low, memory-less effect and it is environmentally friendly the advantages that, be widely used in mobile phone, video camera, notebook The portable sets such as computer.But the charge-discharge performance of the carbonates electrolyte of existing lithium ion battery is relatively low, electrolysis What liquid was easily decomposed in anode surface oxidation under high voltages, the oxidative decomposition of electrolyte itself can also promote at the same time The pernicious reactions such as the change of positive electrode pattern, structure collapses, the service life of battery are relatively low.
The content of the invention
In view of the problems of prior art, the present invention provides a kind of lithium-ion battery electrolytes addition containing inorganic matter Agent and preparation method thereof.
In order to solve the above technical problems, technical solution proposed by the present invention is as follows：A kind of lithium ion battery containing inorganic matter Electrolysis additive, includes the component of following parts by weight：50~70 parts by weight of carbonate solvent, 10~20 parts by weight of aluminium oxide, 10~20 parts by weight of magnesia, 10~20 parts by weight of silica, 15~30 parts by weight of dimethylacetylamide, hexafluorophosphoric acid lithium salts 15 ~30 parts by weight, 8~16 parts by weight of vinylene carbonate, 8~16 parts by weight of ethylene sulfite, 5~15 weight of lithium perchlorate Part, 1~5 parts by weight of diethanol amine, 1~5 parts by weight of tetrabutylammonium bromide.
Lithium-ion battery electrolytes additive containing inorganic matter provided according to the present invention and preparation method thereof, by reasonable Proportioning and each component can improve the charge-discharge performance of electrolyte, prevent the anode of electrolyte under high voltages The problems such as surface oxidation decomposes and positive electrode pattern changes, structure collapses, extends the service life of battery.
In addition, lithium-ion battery electrolytes additive and its preparation side according to the above embodiment of the present invention containing inorganic matter Method, can also have technical characteristic additional as follows：
An example according to the present invention, the carbonate solvent are 50 parts by weight, and the aluminium oxide is 10 parts by weight, The magnesia is 10 parts by weight, and the silica is 10 parts by weight, and the dimethylacetylamide is 15 parts by weight, the hexafluoro Phosphoric acid lithium salts is 15 parts by weight, and the vinylene carbonate is 8 parts by weight, and the ethylene sulfite is 8 parts by weight, described Lithium perchlorate is 5 parts by weight, and the diethanol amine is 1 parts by weight, and the tetrabutylammonium bromide is 1 parts by weight.
An example according to the present invention, the carbonate solvent are 57 parts by weight, and the aluminium oxide is 13 parts by weight, The magnesia is 12 parts by weight, and the silica is 12 parts by weight, and the dimethylacetylamide is 20 parts by weight, the hexafluoro Phosphoric acid lithium salts is 20 parts by weight, and the vinylene carbonate is 10 parts by weight, and the ethylene sulfite is 10 parts by weight, institute It is 7 parts by weight to state lithium perchlorate, and the diethanol amine is 2 parts by weight, and the tetrabutylammonium bromide is 2 parts by weight.
An example according to the present invention, the carbonate solvent are 63 parts by weight, and the aluminium oxide is 17 parts by weight, The magnesia is 17 parts by weight, and the silica is 16 parts by weight, and the dimethylacetylamide is 20 parts by weight, the hexafluoro Phosphoric acid lithium salts is 20 parts by weight, and the vinylene carbonate is 13 parts by weight, and the ethylene sulfite is 13 parts by weight, institute It is 11 parts by weight to state lithium perchlorate, and the diethanol amine is 3 parts by weight, and the tetrabutylammonium bromide is 3 parts by weight.、
An example according to the present invention, the carbonate solvent are 70 parts by weight, and the aluminium oxide is 20 parts by weight, The magnesia is 20 parts by weight, and the silica is 20 parts by weight, and the dimethylacetylamide is 30 parts by weight, the hexafluoro Phosphoric acid lithium salts is 30 parts by weight, and the vinylene carbonate is 16 parts by weight, and the ethylene sulfite is 16 parts by weight, institute It is 15 parts by weight to state lithium perchlorate, and the diethanol amine is 5 parts by weight, and the tetrabutylammonium bromide is 5 parts by weight.
An example according to the present invention, the quality of the lithium-ion battery electrolytes additive containing inorganic matter is electrolysis The 1.5~3.0% of liquid quality.
The advantages of above additional aspect, will be set forth in part in the description, and partly will become bright from the following description It is aobvious, or recognized by the practice of the present invention.
Embodiment
Embodiment one
A kind of lithium-ion battery electrolytes additive containing inorganic matter, includes the component of following parts by weight：The carbonic ester Solvent is 50 parts by weight, and the aluminium oxide is 10 parts by weight, and the magnesia is 10 parts by weight, and the silica is 10 weight Part, the dimethylacetylamide is 15 parts by weight, and the hexafluorophosphoric acid lithium salts is 15 parts by weight, and the vinylene carbonate is 8 Parts by weight, the ethylene sulfite are 8 parts by weight, and the lithium perchlorate is 5 parts by weight, and the diethanol amine is 1 parts by weight, The tetrabutylammonium bromide is 1 parts by weight.Wherein, the quality of the lithium-ion battery electrolytes additive containing inorganic matter is electricity Solve the 1.5~3.0% of liquid quality.
Embodiment two
A kind of lithium-ion battery electrolytes additive containing inorganic matter, includes the component of following parts by weight：The carbonic ester Solvent is 57 parts by weight, and the aluminium oxide is 13 parts by weight, and the magnesia is 12 parts by weight, and the silica is 12 weight Part, the dimethylacetylamide is 20 parts by weight, and the hexafluorophosphoric acid lithium salts is 20 parts by weight, and the vinylene carbonate is 10 Parts by weight, the ethylene sulfite are 10 parts by weight, and the lithium perchlorate is 7 parts by weight, and the diethanol amine is 2 weight Part, the tetrabutylammonium bromide is 2 parts by weight.Wherein, the quality of the lithium-ion battery electrolytes additive containing inorganic matter For the 1.5~3.0% of electrolyte quality.
Embodiment three
A kind of lithium-ion battery electrolytes additive containing inorganic matter, includes the component of following parts by weight：The carbonic ester Solvent is 63 parts by weight, and the aluminium oxide is 17 parts by weight, and the magnesia is 17 parts by weight, and the silica is 16 weight Part, the dimethylacetylamide is 20 parts by weight, and the hexafluorophosphoric acid lithium salts is 20 parts by weight, and the vinylene carbonate is 13 Parts by weight, the ethylene sulfite are 13 parts by weight, and the lithium perchlorate is 11 parts by weight, and the diethanol amine is 3 weight Part, the tetrabutylammonium bromide is 3 parts by weight.Wherein, the quality of the lithium-ion battery electrolytes additive containing inorganic matter For the 1.5~3.0% of electrolyte quality.
Example IV
A kind of lithium-ion battery electrolytes additive containing inorganic matter, includes the component of following parts by weight：The carbonic ester Solvent is 70 parts by weight, and the aluminium oxide is 20 parts by weight, and the magnesia is 20 parts by weight, and the silica is 20 weight Part, the dimethylacetylamide is 30 parts by weight, and the hexafluorophosphoric acid lithium salts is 30 parts by weight, and the vinylene carbonate is 16 Parts by weight, the ethylene sulfite are 16 parts by weight, and the lithium perchlorate is 15 parts by weight, and the diethanol amine is 5 weight Part, the tetrabutylammonium bromide is 5 parts by weight.Wherein, the quality of the lithium-ion battery electrolytes additive containing inorganic matter For the 1.5~3.0% of electrolyte quality.
Comparative example one
Aluminium oxide, magnesia, silica are not used, remaining component is identical with embodiment one.
Comparative example two
Hexafluorophosphoric acid lithium salts is not used, remaining component is identical with embodiment one.
Measure of merit
By each embodiment of the lithium-ion battery electrolytes additive containing inorganic matter and preparation method thereof of the present invention and The charge-discharge performance enhancing rate (i.e. unit interval discharge and recharge) and service life rate elongation of comparative example are compared.Test As a result such as following table：
According to above-mentioned data, technical scheme is by reasonably matching and each component can improve electrolysis The charge-discharge performance of liquid, extends the service life of battery.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (6)

1. a kind of lithium-ion battery electrolytes additive containing inorganic matter, it is characterised in that include the component of following parts by weight：Carbon 50~70 parts by weight of acid esters solvent, 10~20 parts by weight of aluminium oxide, 10~20 parts by weight of magnesia, 10~20 weight of silica Part, 15~30 parts by weight of dimethylacetylamide, 15~30 parts by weight of hexafluorophosphoric acid lithium salts, 8~16 parts by weight of vinylene carbonate, 8~16 parts by weight of ethylene sulfite, 5~15 parts by weight of lithium perchlorate, 1~5 parts by weight of diethanol amine, tetrabutylammonium bromide 1 ~5 parts by weight.
2. the lithium-ion battery electrolytes additive according to claim 1 containing inorganic matter, it is characterised in that the carbonic acid Ester solvent is 50 parts by weight, and the aluminium oxide is 10 parts by weight, and the magnesia is 10 parts by weight, and the silica is 10 weight Part, the dimethylacetylamide is 15 parts by weight, and the hexafluorophosphoric acid lithium salts is 15 parts by weight, and the vinylene carbonate is 8 Parts by weight, the ethylene sulfite are 8 parts by weight, and the lithium perchlorate is 5 parts by weight, and the diethanol amine is 1 parts by weight, The tetrabutylammonium bromide is 1 parts by weight.
3. the lithium-ion battery electrolytes additive according to claim 1 containing inorganic matter, it is characterised in that the carbonic acid Ester solvent is 57 parts by weight, and the aluminium oxide is 13 parts by weight, and the magnesia is 12 parts by weight, and the silica is 12 weight Part, the dimethylacetylamide is 20 parts by weight, and the hexafluorophosphoric acid lithium salts is 20 parts by weight, and the vinylene carbonate is 10 Parts by weight, the ethylene sulfite are 10 parts by weight, and the lithium perchlorate is 7 parts by weight, and the diethanol amine is 2 weight Part, the tetrabutylammonium bromide is 2 parts by weight.
4. the lithium-ion battery electrolytes additive according to claim 1 containing inorganic matter, it is characterised in that the carbonic acid Ester solvent is 63 parts by weight, and the aluminium oxide is 17 parts by weight, and the magnesia is 17 parts by weight, and the silica is 16 weight Part, the dimethylacetylamide is 20 parts by weight, and the hexafluorophosphoric acid lithium salts is 20 parts by weight, and the vinylene carbonate is 13 Parts by weight, the ethylene sulfite are 13 parts by weight, and the lithium perchlorate is 11 parts by weight, and the diethanol amine is 3 weight Part, the tetrabutylammonium bromide is 3 parts by weight.
5. the lithium-ion battery electrolytes additive according to claim 1 containing inorganic matter, it is characterised in that the carbonic acid Ester solvent is 70 parts by weight, and the aluminium oxide is 20 parts by weight, and the magnesia is 20 parts by weight, and the silica is 20 weight Part, the dimethylacetylamide is 30 parts by weight, and the hexafluorophosphoric acid lithium salts is 30 parts by weight, and the vinylene carbonate is 16 Parts by weight, the ethylene sulfite are 16 parts by weight, and the lithium perchlorate is 15 parts by weight, and the diethanol amine is 5 weight Part, the tetrabutylammonium bromide is 5 parts by weight.
6. the lithium-ion battery electrolytes additive according to claim 1 containing inorganic matter, it is characterised in that described to contain nothing The quality of the lithium-ion battery electrolytes additive of machine thing is the 1.5~3.0% of electrolyte quality.
CN201711047027.6A 2017-10-31 2017-10-31 Lithium-ion battery electrolytes additive containing inorganic matter Pending CN107968222A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110504490A (en) * 2019-08-23 2019-11-26 北京理工大学 A kind of high-voltage electrolyte and preparation method thereof of siliceous based additive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150017656A1 (en) * 2012-11-15 2015-01-15 Daniel Wang Rapid Lateral Flow Assay Method for Detecting Low Quantity Liquid or Dry Samples
CN105938919A (en) * 2016-07-08 2016-09-14 南方科技大学 Electrolyte containing inorganic additive and lithium-ion battery containing electrolyte
CN106575793A (en) * 2014-08-12 2017-04-19 国立研究开发法人产业技术综合研究所 Electrolyte for nonaqueous secondary cell and nonaqueous secondary cell using same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150017656A1 (en) * 2012-11-15 2015-01-15 Daniel Wang Rapid Lateral Flow Assay Method for Detecting Low Quantity Liquid or Dry Samples
CN106575793A (en) * 2014-08-12 2017-04-19 国立研究开发法人产业技术综合研究所 Electrolyte for nonaqueous secondary cell and nonaqueous secondary cell using same
CN105938919A (en) * 2016-07-08 2016-09-14 南方科技大学 Electrolyte containing inorganic additive and lithium-ion battery containing electrolyte

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110504490A (en) * 2019-08-23 2019-11-26 北京理工大学 A kind of high-voltage electrolyte and preparation method thereof of siliceous based additive
CN110504490B (en) * 2019-08-23 2021-05-18 北京理工大学 High-voltage electrolyte containing silicon-based additive and preparation method thereof

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Application publication date: 20180427