CN101710629A - Method for charging battery pack - Google Patents
Method for charging battery pack Download PDFInfo
- Publication number
- CN101710629A CN101710629A CN200910186454A CN200910186454A CN101710629A CN 101710629 A CN101710629 A CN 101710629A CN 200910186454 A CN200910186454 A CN 200910186454A CN 200910186454 A CN200910186454 A CN 200910186454A CN 101710629 A CN101710629 A CN 101710629A
- Authority
- CN
- China
- Prior art keywords
- battery pack
- charging
- protective gas
- inert protective
- temperature
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Images
Classifications
-
- 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 a method for charging a battery pack. The charge of the battery pack is carried out in an inert protective gas environment. The invention can effectively prevent the battery pack from generating burning or explosion in the charging process, improve the charging safety of the battery pack and reduce the temperature of the battery pack and is beneficial to rapidly and safely charging the battery pack.
Description
Technical field
The present invention relates to a kind of method for charging battery pack, relate in particular to a kind of charging method of power battery pack.
Background technology
The capacity of rechargeable battery set is increasing, uses more and more widely, when offering convenience, also has some potential safety hazards, might cause personal injury or property loss because of overcharging or other former thereby generation burning even blast during as charging.The charging process of battery pack is all carried out in air, and battery temperature can raise gradually during charging, and final high temperature gasifies electrolyte, at this moment, make the material combustion blast no matter be that temperature is too high, or shell is bursting at the collision earlier, air being entered and fierce oxidation takes place the lithium metal, all is the blast end.Because blast is because battery pack is arranged in air, the fierce oxidation reaction of lithium metal and the generation of airborne oxygen causes, so if battery pack is positioned at the environment that does not have oxygen, then such accident just can be avoided.
Summary of the invention
The object of the invention provides a kind of method for charging battery pack, and it can prevent effectively that battery pack from burning or blast taking place in charging process, the charging fail safe that improves battery pack, and the while can be reduced the temperature of battery pack, helps battery pack and fast and safely charges.
Technical scheme of the present invention is: a kind of method for charging battery pack, the charging of described battery pack is carried out under the inert protective gas environment.
Further, described inert protective gas is that inert gas, nitrogen etc. do not participate in the protective gas that reacts in the batteries charging process.
Further, above-mentioned method for charging battery pack may further comprise the steps:
1) battery pack is placed in the airtight casing that is provided with air inlet and exhaust outlet and vacuumize; Air inlet and exhaust outlet can be provided with intake valve and vent valve respectively, exhaust vacuum after, two valves are all closed, whole airtight casing is in sealing state;
2) during batteries charging, open intake valve and in airtight casing, fill inert protective gas, when in airtight casing, reaching pressure set points, open exhaust outlet by air inlet.Air inlet and exhaust outlet lay respectively at the both sides that are positioned over the battery pack in the airtight casing, make inert protective gas constantly enter by air inlet and around battery pack process, discharge the heat that distributes when taking away batteries charging at last again by exhaust outlet.
Further, the temperature of described inert protective gas is 15～35 ℃.
Preferable, the temperature of described inert protective gas is 20～30 ℃.
Further, described inert protective gas is a nitrogen, and nitrogen is generally preserved with the liquid nitrogen form; the nitrogen self-temperature that liquid nitrogen vaporization becomes during use is just lower; do not need to cool off separately again, when being used for doing the batteries charging protective gas, can also effectively reduce battery pack temperature.
Advantage of the present invention is:
1, the charging of battery pack of the present invention is carried out under the inert protective gas environment, does not have around the battery pack and can participate in the oxygen of oxidation reaction with lithium ion, the blast of stopping and the possibility of burning, the charging fail safe that has improved battery pack.
2, battery pack of the present invention diffusing heat when charging can be taken away by the inert protective gas that constantly flows through in battery surface, has reduced the temperature of battery pack effectively, helps the charging fast and safely of battery pack.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention.
Wherein: 1 airtight casing; 11 air inlets; 12 exhaust outlets; 2 battery pack.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment: as shown in Figure 1, a kind of method for charging battery pack, the charging of described battery pack 2 is carried out under nitrogen environment.
Above-mentioned method for charging battery pack may further comprise the steps:
1) battery pack 2 is placed in the airtight casing 1 that is provided with air inlet 11 and exhaust outlet 12 and vacuumize;
When 2) battery pack 2 is charged, in airtight casing 1, fill inert protective gas, when in airtight casing 1, reaching pressure set points, open exhaust outlet 12 by air inlet 11.
The temperature of described inert protective gas is 15～35 ℃.
Preferable, the temperature of described inert protective gas is 20～30 ℃.
Specific embodiment:
The 24V100Ah battery pack is charged, and charging current is 100A, the nitrogen that difference bubbling air (ambient temperature is 30 degrees centigrade) and feeding are 20 degrees centigrade, and setting gaseous emission pressure is 0.05Mpa, measures battery in difference temperature constantly as shown in Table 1.Use nitrogen can reduce the temperature of the battery pack of charging effectively as can be seen, help the charging fast and safely of battery pack.
Table one:
| Heat radiation gas | Gas temperature | 10 minutes | 20 minutes | 30 minutes | 40 minutes | 50 minutes | 60 minutes |
| Air | ??30℃ | ??33 | ??38 | ??42 | ??45 | ??47 | ??48 |
| Nitrogen | ??20℃ | ??23 | ??24 | ??25 | ??25 | ??25 | ??24 |
The present invention can prevent effectively that battery pack from burning or blast taking place in charging process, the charging fail safe that improves battery pack, and the while can be reduced the temperature of battery pack, helps battery pack and fast and safely charges.
Claims (5)
1. method for charging battery pack, it is characterized in that: the charging of described battery pack (2) is carried out under the inert protective gas environment.
2. method for charging battery pack according to claim 1 is characterized in that may further comprise the steps:
1) battery pack (2) is placed be provided with air inlet (11) and exhaust outlet (12) airtight casing (1) in and vacuumize;
When 2) battery pack (2) is charged, in airtight casing (1), fill inert protective gas, when in airtight casing (1), reaching pressure set points, open exhaust outlet (12) by air inlet (11).
3. method for charging battery pack according to claim 1 and 2 is characterized in that: the temperature of described inert protective gas is 15～35 ℃.
4. method for charging battery pack according to claim 3 is characterized in that: the temperature of described inert protective gas is 20～30 ℃.
5. method for charging battery pack according to claim 1 is characterized in that: described inert protective gas is a nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101864541A CN101710629B (en) | 2009-11-03 | 2009-11-03 | Method for charging battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101864541A CN101710629B (en) | 2009-11-03 | 2009-11-03 | Method for charging battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101710629A true CN101710629A (en) | 2010-05-19 |
| CN101710629B CN101710629B (en) | 2012-05-30 |
Family
ID=42403401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101864541A Active CN101710629B (en) | 2009-11-03 | 2009-11-03 | Method for charging battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101710629B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148397A (en) * | 2011-02-12 | 2011-08-10 | 昆明五威科工贸有限公司 | Security application protection system of lithium-ion battery pack |
| CN102906898A (en) * | 2011-05-25 | 2013-01-30 | 丰田自动车株式会社 | Battery and method for manufacturing same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11260416A (en) * | 1998-03-11 | 1999-09-24 | Ngk Insulators Ltd | Lithium secondary battery |
| CN101079509A (en) * | 2006-05-22 | 2007-11-28 | 比亚迪股份有限公司 | A making method for lithium ion secondary cell |
-
2009
- 2009-11-03 CN CN2009101864541A patent/CN101710629B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148397A (en) * | 2011-02-12 | 2011-08-10 | 昆明五威科工贸有限公司 | Security application protection system of lithium-ion battery pack |
| CN102906898A (en) * | 2011-05-25 | 2013-01-30 | 丰田自动车株式会社 | Battery and method for manufacturing same |
| CN102906898B (en) * | 2011-05-25 | 2015-09-09 | 丰田自动车株式会社 | Battery And Its Manufacturing Methods |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101710629B (en) | 2012-05-30 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170728 Address after: Huahong street Suzhou Industrial Park in Jiangsu province 215000 No. 29 Patentee after: ANKAO (SUZHOU) ENERGY Co.,Ltd. Address before: 310030, No. 208, vibration road, West Lake science and Technology Park, Hangzhou, Zhejiang Patentee before: CENS ENERGY-TECH CO.,LTD. |
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Effective date of registration: 20200417 Granted publication date: 20120530 |
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| PD01 | Discharge of preservation of patent | ||
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Date of cancellation: 20220526 Granted publication date: 20120530 |
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Effective date of registration: 20240206 Address after: Room J2243, No. 6, Lane 129, Huajiang Road, Jiading District, Shanghai, 201800 Patentee after: Shanghai Qike Network Technology Co.,Ltd. Country or region after: China Address before: No. 29, Huahong Street, Suzhou Industrial Park, Jiangsu Province, 215000 Patentee before: ANKAO (SUZHOU) ENERGY Co.,Ltd. Country or region before: China |