CN103840223A - Lithium battery filling agent - Google Patents
Lithium battery filling agent Download PDFInfo
- Publication number
- CN103840223A CN103840223A CN201410078097.8A CN201410078097A CN103840223A CN 103840223 A CN103840223 A CN 103840223A CN 201410078097 A CN201410078097 A CN 201410078097A CN 103840223 A CN103840223 A CN 103840223A
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- CN
- China
- Prior art keywords
- lithium electricity
- battery pack
- lithium battery
- oxide
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a lithium battery filling agent. The lithium battery filing agent is used for filling a gap of a lithium battery pack and comprises the following components in percentage by mass: 25%-90% of paraffin, 5%-70% of a flame retardant and 3%-20% of a cooling agent. The lithium battery can be efficiently cooled, the technology is simple, and no peripheral cooling device is needed; as the flame retardant is added, heat produced in a using process of the battery pack can be absorbed, and when the temperature of a battery is too high and is close to or higher than a combustion value of paraffin, a flame retardant effect can be realized and potential safety hazards, such as outbreak of a fire and explosion, of the lithium battery can be eliminated; cooling is carried out from interior of the battery pack by adding the cooling agent, the cooling capacity of the lithium battery is further improved, the working temperature of the lithium battery is reduced, the temperature of the battery pack is uniform, the temperature difference among batteries in the battery pack is eliminated, and accidents that the batteries are soft and bulged as local temperature is too high owning to nonuniform cooling of the battery pack can be effectively prevented.
Description
Technical field
The present invention is filled in the interstitial functional material of battery pack, is specifically related to a kind of lithium electricity filler.
Background technology
Being the most critical parts on electric automobile with power lithium battery (power-type lithium ion battery or lithium ion battery group), can being called the heart of electric automobile, is the emphasis of electric automobile research.
The high power of power lithium battery and fast charging and discharging are the trends of the times of Development of Electric Vehicles.For battery pack, charge-discharge magnification is higher, and it heats up also just faster, and temperature has double influence to battery: temperature is higher, and the internal resistance of cell is less, and corresponding battery efficiency is also just higher; Meanwhile, the various chemical reactions of high temperature in can acceleration system, especially may make battery structure produce the speed of the adverse reaction of permanent lesion.Moreover, when non-uniform temperature, the battery pole piece of part under hot conditions is also easily impaired, easily cause over-charging of battery, have a strong impact on battery (group) performance extremely useful life, show as the electric weight that can be filled with fewer and feweri, generate heat also more serious, when heat can not get effectively transmitting or distributing, very easily cause the chemical property of battery pack to decline and single battery falls behind the generation of phenomenon, when serious, also can cause the security incidents such as the soft drum of battery, on fire, blast.
At present aspect system radiating, the heat producing while mostly taking the devices such as provided with fan by system works is discharged, and that the trend of internal system air stream requires fan mounting means is tighter, moreover power and the exhaust air rate etc. thereof of fan, all can be subject to the structural limitations of system and internal module thereof.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of lithium electricity filler, in the course of processing of lithium electricity, fill it in the battery pack space of lithium electricity, can effectively dispel the heat to lithium battery, technique is simple, does not need peripheral hardware heat abstractor; And by increasing fire retardant, can absorb the heat that battery pack in use produces, approach or while exceeding the fuel value of paraffin, can play flame retardant effect when battery temperature is too high simultaneously, the potential safety hazards such as the electrical fire of elimination lithium, blast; Carry out refrigeration radiating by increasing cold-producing medium from battery pack inside, further improve the heat-sinking capability of lithium electricity, reduce the working temperature of lithium battery, and make battery pack temperature evenly, eliminate the temperature difference between each battery in battery pack, effectively prevent that battery pack from causing the soft bulging accident of the too high battery causing of local temperature because of the inequality of dispelling the heat; The present invention can effectively improve the fail safe in use of lithium electricity, improves the useful life of lithium electricity.
The object of the present invention is to provide a kind of lithium electricity filler, for being filled into the battery pack space of lithium electricity, comprise paraffin, fire retardant, cold-producing medium, the mass ratio of each component is: paraffin 25%～90%, fire retardant 5%～70%, cold-producing medium 3%～20%.
Further improvement of the present invention is: described cold-producing medium is calcium bromide.
Further improvement of the present invention is: described fire retardant is selected from least one of following material: salt, (6) borate, (7) magnesium oxide or the aluminium oxide of (1) zinc fluoride, (2) molybdenum based compound, (3) antimony oxide or antimonous oxide and halid mixture, (4) halide, (5) phosphate or phosphate.
Further improvement of the present invention is: in described antimony oxide or antimonous oxide and halid mixture, the molar ratio of halogen and antimony is >=3:1.
Further improvement of the present invention is: in described fire retardant, the molar ratio of halogen and antimony is >=3:1.
Further improvement of the present invention is: described molybdenum based compound is selected from molybdenum oxide or molybdenum sulfide.
Further improvement of the present invention is: described halide is selected from chain aliphat, annular aliphatic or aromatic halide.
Further improvement of the present invention is: described halide is selected from annular aliphatic chloride or decabromobiphenyl oxide.
Further improvement of the present invention is: described paraffin, fire retardant and cold-producing medium are solid state or liquid condition.
The invention has the beneficial effects as follows: in the course of processing of lithium electricity, filler is filled in battery pack space,, can effectively dispel the heat to lithium battery, technique is simple, does not need peripheral hardware heat abstractor; And by increasing fire retardant, can absorb the heat that battery pack in use produces, approach or while exceeding the fuel value of paraffin, can play flame retardant effect when battery temperature is too high simultaneously, the potential safety hazards such as the electrical fire of elimination lithium, blast; Carry out refrigeration radiating by increasing cold-producing medium from battery pack inside, further improve the heat-sinking capability of lithium electricity, reduce the working temperature of lithium battery, and make battery pack temperature evenly, eliminate the temperature difference between each battery in battery pack, effectively prevent that battery pack from causing the soft bulging accident of the too high battery causing of local temperature because of the inequality of dispelling the heat; The present invention can effectively improve the fail safe in use of lithium electricity, improves the useful life of lithium electricity.
Embodiment
For the ease of it will be appreciated by those skilled in the art that the invention will be further described below in conjunction with embodiment, illustrated embodiment is only the preferred embodiment of the present invention, is not intended to limit scope of the present invention.
Embodiment 1
A kind of lithium electricity filler, for being filled into the battery pack space of lithium electricity, comprises paraffin, fire retardant, cold-producing medium, and the mass ratio of each component is: paraffin 25%, decabromobiphenyl oxide 46%, antimony oxide 23%, cold-producing medium 6%.In the mixture of described fire retardant antimony oxide and decabromobiphenyl oxide, brominated and molar ratio antimony is 3:1, both cooperative flame retardant best results of this ratio.Described paraffin, fire retardant and cold-producing medium are the powder of solid state.
Embodiment 2
A kind of lithium electricity filler, for being filled into the battery pack space of lithium electricity, comprises paraffin, fire retardant, cold-producing medium, and the mass ratio of each component is: liquid paraffin 81%, solid-state zinc fluoride 1%, solid-state halide 2%, solid-state molybdenum sulfide 2%, solid brominated calcium 14%.
Embodiment 3
A kind of lithium electricity filler, for being filled into the battery pack space of lithium electricity, comprises paraffin, fire retardant, cold-producing medium, the mass ratio of each component is: liquid paraffin 39%, the salt 10% of phosphate or phosphate, molybdenum oxide 10%, magnesium oxide 10%, borate 11%, solid brominated calcium 20%.
The foregoing is only preferred embodiment of the present invention, be not limited to the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a lithium electricity filler, for being filled into the battery pack space of lithium electricity, is characterized in that: comprise paraffin, fire retardant, cold-producing medium, the mass ratio of each component is: paraffin 25%～90%, fire retardant 5%～70%, cold-producing medium 3%～20%.
2. a kind of lithium electricity filler as claimed in claim 1, is characterized in that: described cold-producing medium is calcium bromide.
3. a kind of lithium electricity filler as claimed in claim 1, is characterized in that: described fire retardant is selected from least one of following material: salt, (6) borate, (7) magnesium oxide or the aluminium oxide of (1) zinc fluoride, (2) molybdenum based compound, (3) antimony oxide or antimonous oxide and halid mixture, (4) halide, (5) phosphate or phosphate.
4. a kind of lithium electricity filler as claimed in claim 3, is characterized in that: in described antimony oxide or antimonous oxide and halid mixture, institute's molar ratio halogen-containing and antimony is >=3:1.
5. a kind of lithium electricity filler as claimed in claim 3, is characterized in that: in described fire retardant, the molar ratio of halogen and antimony is >=3:1.
6. a kind of lithium electricity filler as claimed in claim 3, is characterized in that: described molybdenum based compound is selected from molybdenum oxide or molybdenum sulfide.
7. a kind of lithium electricity filler as claimed in claim 3, is characterized in that: described halide is selected from chain aliphat, annular aliphatic or aromatic halide.
8. a kind of lithium electricity filler as claimed in claim 3, is characterized in that: described halide is selected from annular aliphatic chloride or decabromobiphenyl oxide.
9. a kind of lithium electricity filler as claimed in claim 1, is characterized in that: described paraffin, fire retardant and cold-producing medium are solid state or liquid condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078097.8A CN103840223B (en) | 2014-03-05 | 2014-03-05 | A kind of lithium electricity filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078097.8A CN103840223B (en) | 2014-03-05 | 2014-03-05 | A kind of lithium electricity filler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103840223A true CN103840223A (en) | 2014-06-04 |
| CN103840223B CN103840223B (en) | 2017-11-24 |
Family
ID=50803498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410078097.8A Active CN103840223B (en) | 2014-03-05 | 2014-03-05 | A kind of lithium electricity filler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103840223B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390522A (en) * | 2018-08-31 | 2019-02-26 | 金华安靠电源科技有限公司 | A kind of electric vehicle battery holder |
| CN109836817A (en) * | 2019-01-28 | 2019-06-04 | 杭州本松新材料技术股份有限公司 | Halogen flame and its application |
| CN115842112A (en) * | 2022-01-05 | 2023-03-24 | 宁德时代新能源科技股份有限公司 | Secondary battery, battery module, battery pack, and electric device using the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437370A (en) * | 2010-09-29 | 2012-05-02 | 比亚迪股份有限公司 | Lithium ion battery |
| CN102623655A (en) * | 2012-04-05 | 2012-08-01 | 惠州市博能新能源有限公司 | Functional filling material for li-ion battery pack |
-
2014
- 2014-03-05 CN CN201410078097.8A patent/CN103840223B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437370A (en) * | 2010-09-29 | 2012-05-02 | 比亚迪股份有限公司 | Lithium ion battery |
| CN102623655A (en) * | 2012-04-05 | 2012-08-01 | 惠州市博能新能源有限公司 | Functional filling material for li-ion battery pack |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390522A (en) * | 2018-08-31 | 2019-02-26 | 金华安靠电源科技有限公司 | A kind of electric vehicle battery holder |
| CN109836817A (en) * | 2019-01-28 | 2019-06-04 | 杭州本松新材料技术股份有限公司 | Halogen flame and its application |
| CN109836817B (en) * | 2019-01-28 | 2022-02-25 | 杭州本松新材料技术股份有限公司 | Halogen flame retardant and application thereof |
| CN115842112A (en) * | 2022-01-05 | 2023-03-24 | 宁德时代新能源科技股份有限公司 | Secondary battery, battery module, battery pack, and electric device using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103840223B (en) | 2017-11-24 |
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Effective date of registration: 20200825 Address after: 453000 HII 1201-217 (2109) in Torch Park, No. 1789 Xinfei Avenue, Xinxiang High-tech Zone, Henan Province Patentee after: Henan plain public intellectual property operation and Management Co.,Ltd. Address before: 241000 Anhui city of Wuhu Province Economic and Technological Development Zone No. 28 Hu Lu Ouyang Patentee before: WUHU KAIER ELECTRICAL TECHNOLOGY Co.,Ltd. |