CN101054642A - Aluminum alloy for preparing battery shell - Google Patents
Aluminum alloy for preparing battery shell Download PDFInfo
- Publication number
- CN101054642A CN101054642A CNA2006100350689A CN200610035068A CN101054642A CN 101054642 A CN101054642 A CN 101054642A CN A2006100350689 A CNA2006100350689 A CN A2006100350689A CN 200610035068 A CN200610035068 A CN 200610035068A CN 101054642 A CN101054642 A CN 101054642A
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- aluminium alloy
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- alloy
- battery case
- aluminium
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Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 37
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 239000004411 aluminium Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 description 20
- 229910045601 alloy Inorganic materials 0.000 description 19
- 239000000463 material Substances 0.000 description 12
- 239000010949 copper Substances 0.000 description 8
- 239000011777 magnesium Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000011572 manganese Substances 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to an aluminum alloy for manufacturing cell shell, which is composed of the following components in weight percentage: 0.1%<Si<0.3%, 0.2%<Fe<0.55%, 0.12%<Cu<1.0%, 0.25%< Mg<0.6%, 0.5%<Mn<2%, 0.05%<Zr<0.3% and 0.05<=Ti<=0.1, and other elements are 0.05% at most for each and 0.15% at most for all and the rest element is aluminum. The invention provides an aluminum alloy for manufacturing cell shell with high tensile strength, high yield strength and low elongation percentage.
Description
[technical field]
The present invention relates to a kind of New Type Material aluminium alloy, be specifically related to a kind of aluminium alloy that is used to make property material for battery shell.
[technical background]
Development of electronic technology is to the portable power source demand aggravation of high-energy-density.Because lithium ion battery has that volume is little, in light weight, the advantage of high-voltage, heavy body and have extended cycle life, safety performance is good, sparking voltage is high, specific energy is big etc., it is widely used in the communication product electron devices such as mobile phone, digital camera, notebook computer, also progressively expanded range of application in recent years to numerous areas such as electromobile, space technology, national defense industry.Being accompanied by high-end electronic product constantly updates, complete electronic set is progressively to weak point, trend development such as little, light, thin, and consumer electronics will be towards the function development with multimedia integration under the megatrend that 3C (communication, IT, consumer electronics) merges, be subjected to the influence of this trend, supporting with it portable power source----lithium-ion secondary cell also will develop to direction such as light, thin.How under prerequisites such as lithium secondary battery is light, thin, to guarantee that the heavy body of its original battery becomes the primary problem that solves of lithium cell manufacturer.
For the heavy body that guarantees lithium-ion secondary cell and keeping under the constant prerequisite of battery physical dimension, thereby numerous lithium cell manufacturer multiselect is realized above-mentioned purpose with good chemical raw material and these two kinds of modes of wall thickness increase enclosure interior space of reducing aluminium mass shell body.Wherein reduce the method that the thick increase of aluminium mass shell body wall internal space becomes numerous producers first-selection.
The aluminium mass shell body material of using in the market is alloy A 3003P-H1, and this aluminium alloy has following weight percent and forms: Si 0.30%, and Fe 0.55%, and Cu 0.12%, and Mn 1.0%, and Ti% is less than or equal to 0.05%
Surplus is aluminium and other trace impurities.
This aluminium alloy is because its material itself is softer, thereby be prone to following problem in housing processing and battery production process: 1, unit elongation is excessive, about about 6%, thus cause housing in stretch process thin-wall case process, to be difficult to control, thereby the material condemnation factor is higher; 2, in packing and transportation, be subjected to easily to cause faucal and plane deformation phenomenon after external force collision or the extruding; 3, Laser Welding is prone to sand holes, and gas leakage quality fraction defective is higher, if electric in-core portion produces pressure or produces gas, causes the degradation of electric core or scraps thereby swelling very easily appears in housing, causes bigger financial loss.
Therefore, at the particular requirement of battery case to aluminum alloy material, the aluminium alloy of seeking high tensile, high-yield strength, low elongation becomes the task of top priority!
[summary of the invention]
At above-mentioned technical problem, the object of the present invention is to provide a kind of aluminium alloy that is used to make battery case with high tensile, high-yield strength, low elongation.
Another purpose of purpose of the present invention also is to use the battery case of this aluminium alloy manufacturing.
For achieving the above object, the present invention is by the following technical solutions:
The battery case aluminium alloy is made in a kind of novel being used to, this aluminium alloy has following weight percent and forms: 0.1%＜silicon Si＜0.3%, 0.2%＜iron Fe＜0.55%, 0.12%＜copper Cu＜1.0%, 0.25%＜magnesium Mg＜0.6%, 0.5%＜manganese Mn＜2%, 0.05%＜zirconium Zr＜0.3%, 0.05≤titanium Ti≤0.1, other elements are at most 0.05% for every kind, and total amount is at most basis 0.15%, and surplus is an aluminium.
Si is the alloying element in the alloy of the present invention, and expectation Si improves the intensity of alloy by solution hardening and precipitation-hardening, too much can influence the otherwise performance of alloy but exist, and the present invention selects its content range at 0.1%-0.3%, preferred 0.2%-0.25%.
Cu is present in the alloy of the present invention, to improve described alloy strength.The content of Cu is limited in the scope of 0.12%-1.0%, more preferably, is limited in the 0.2%-0.6% scope, so that reach desired intensity.
Fe is a kind of alloying element that is present in all known aluminium alloys.Add Fe for the intensity that increases alloy, its content is controlled at 0.2%-0.55%, preferred 0.3%-0.50%.
Mn is the important alloying element in this alloy, is to add Mn for the intensity that improves alloy equally.Its content range is 05%-2%, preferred 1%.
Mg can significantly increase the intensity of alloy, but has disadvantageous effect in others, and for this reason, Mg content is 0.25%-0.6%, preferred 0.3-0.45%.
Intensity and other performance of other metal pair alloy of the present invention do not have too big effect, but zr can improve its welding property, and the content of zr is 0.05%-0.3%, and preferred 0.15%; The existence of finding Ti according to relevant literature research can reduce the unit elongation of alloy, but can not be too much, and its content is 0.05%-0.1% among the present invention, preferred 0.05%-0.08%.
This aluminium alloy is mainly used in the shell of making battery, also can be used for other purposes.
In conjunction with the following embodiment that will describe in detail, compared with prior art, beneficial effect of the present invention is: 1, high strength.Because of Cu, Mg can effectively improve alloy rigidity, so new material Thin-walled Aluminum shell is by allocating in right amount alloy ingredient Cu, Mg, thereby its surface of shell intensity is improved greatly, prove that through actual detected the tensile strength of aluminium alloy of the present invention and yield strength are compared with A3003P-H14 and improved about 20.0--70.0N/mm
2, unit elongation reduces about about 50%.And the enhancing of intensity also reduces it and is subjected to faucal and brinelling under the external force effect; 2, expansibility resistance can improve.The raising of new material Thin-walled Aluminum shell surface strength can effectively prevent to cause housing to expand after electric in-core portion from producing gas, also can reduce repeatedly the circulate coefficient of expansion of the electric core thickness in back of electric core greatly.Aluminium alloy of the present invention expansibility resistance under hot conditions can also be better than A3003P-H14 greatly.Therefore, with the battery case that this aluminium alloy makes, that shell wall can be made under the situation that does not change requirement of strength is thinner, thereby effectively increases the enclosure interior space under profile size constancy prerequisite, improves the design capacity of battery.In addition, the present invention makes battery case have welding property preferably by adjusting suitable zr content, can reduce the rack of fusion rate.
[embodiment]
With reference to embodiment the present invention is described in detail below, but these embodiment should be interpreted as being used for limiting the scope of the invention in no instance.
As shown in table 1 below, for by weight percentage, the different embodiment that the aluminium alloy that adopts alloy ingredient of the present invention to make compares with A3003P-H14, wherein embodiment (1-15) is a material composition of the present invention, Comparative Examples (16) is the material composition of A3003P-H14.
Table 2 is the mechanical property of table 1 aluminium alloy, and as can be known from Table 2, the tensile strength of 1-15, yield strength all obviously are better than A3003P-H14, and unit elongation is lower more than 50% than A3003P-H14 type aluminium alloy.
The chemical ingredients of table 1 aluminium alloy of being tested by weight percentage, surplus are aluminium and impurity
| Material composition | Si | Fe | C u | M n | Mg | Zr | Ti |
| 1 | 0. 1 | 0. 2 | 0. 12 | 0. 5 | 0.2 5 | 0. 05 | 0.0 5 |
| 2 | 0. 3 | 0. 55 | 1. 0 | 2 | 0.6 | 0. 3 | 0.1 |
| 3 | 0. 1 | 0. 25 | 0. 18 | 0. 6 | 0.2 8 | 0. 10 | 0.0 5 |
| 4 | 0. 30 | 0. 52 | 1. 0 | 1. 6 | 0.5 | 0. 20 | 0.0 9 |
| 5 | 0. 18 | 0. 40 | 0. 12 | 1 | 0.4 0 | 0. 3 | 0.0 9 |
| 6 | 0. 25 | 0. 2 | 0. 6 | 0. 8 | 0.6 | 0. 20 | 0.0 8 |
| 7 | 0. 25 | 0. 55 | 0. 15 | 2 | 0.5 | 0. 15 | 0.0 8 |
| 8 | 0. 2 | 0. 3 | 0. 2 | 0. 5 | 0 .3 | 0. 15 | 0.0 5 |
| 9 | 0. 2 | 0. 3 | 0. 8 | 0. 8 | 0.2 5 | 0. 15 | 0.0 5 |
| 10 | 0. 25 | 0. 52 | 0. 6 | 1. 4 | 0.4 5 | 0. 05 | 0.0 8 |
| 11 | 0. 28 | 0. 3 | 0. 6 | 0. 8 | 0.4 5 | 0. 15 | 0.1 |
| 12 | 0. 2 | 0. 3 | 0. 2 | 0. 8 | 0.3 | 0. 15 | 0.0 5 |
| 13 | 0. 25 | 0. 5 | 0. 6 | 1. 4 | 0.4 5 | 0. 15 | 0.0 8 |
| 14 | 0. 25 | 0. 3 | 0. 6 | 0. 8 | 0.4 5 | 0. 15 | 0.0 8 |
| 15 | 0. 23 | 0. 40 | 0. 40 | 1 | 0.4 | 0. 15 | 0.0 65 |
| 16(A3003P-H 14) | 0. 3 | 0. 55 | 0. 12 | 1 | 0 | 0 | ＜0. 05 |
The mechanical property of table 2 table 1 aluminium alloy
| 5 | 190 | 186 | 2.8 |
| 6 | 192 | 195 | 2.8 |
| 7 | 198 | 200 | 3.1 |
| 8 | 199 | 200 | 2.55 |
| 9 | 212 | 195 | 2.62 |
| 10 | 200 | 208 | 2.6 |
| 11 | 205 | 203 | 2.8 |
| 12 | 220 | 211 | 2.2 |
| 13 | 218 | 220 | 2.3 |
| 14 | 222 | 220 | 2.1 |
| 15 | 238 | 230 | 2.0 |
| 16(A3003P-H14) | 167 | 161 | 6 |
As seen from the above table, by adjusting the inner composition of alloy aluminium, the content of particularly adjusting metallic elements such as Fe, Cu, Mg, Mn changes and strengthens the mechanical characteristics of alloy aluminum, and makes the tensile strength of this New Type Material alloy aluminum and yield strength compare the about 20.0--70.0N/mm of raising with A3003P-H14 by the allotment to each metal element content ratio of alloy aluminum inside
2, unit elongation drops to about 3%, unit elongation decreases by more than 50%.
Simultaneously, this new material aluminium alloy by the adjustment of interior metal constituent content after its expansibility resistance under hot conditions can also be better than the A3003P-H14 aluminium alloy greatly.For example: respectively 25 ℃, 80 ℃, 120 ℃, 150 ℃, the 180 ℃ tensile strengths that detect embodiment (7) and Comparative Examples (16): the tensile strength (N/mm of embodiment (7)
2) be respectively: 195,196,198,200,205, and the tensile strength (N/mm of embodiment (16)
2) be respectively: 167,165,163,159,155, according to above-mentioned two groups of correlation datas, we can find that in 25-180 ℃ of scope, tensile strength of the present invention does not only reduce, but also slightly increases, and demonstrates excellent expansibility resistance energy.And review Comparative Examples, under the original just tensile strength situation the end of than, tensile strength further reduces, and demonstrates relatively poor expansibility resistance energy.
Claims (11)
1, a kind of aluminium alloy that is used to make battery case, by weight percentage, it consists of: 0.1%＜Si＜0.3%, 0.2%＜Fe＜0.55%, 0.12%＜Cu＜1.0%, 0.25%＜Mg＜0.6%, 0.5%＜Mn＜2%, 0.05%＜Zr＜0.3%, 0.05≤Ti≤0.1, other elements are at most 0.05% for every kind, and total amount is at most 0.15%, and surplus is an aluminium.
2, the aluminium alloy that is used to make battery case according to claim 1 is characterized in that: the content of Fe is 0.3%-0.5%.
3, the aluminium alloy that is used to make battery case according to claim 1 and 2 is characterized in that: the content of Cu is 0.2%-0.6%.
4, the aluminium alloy that is used to make battery case according to claim 3 is characterized in that: the content of Mg is 0.3%-0.45%.
5, the aluminium alloy that is used to make battery case according to claim 4 is characterized in that: the content of Mn is 0.8%-1.4%.
6, the aluminium alloy that is used to make battery case according to claim 5 is characterized in that: the content of Si is 0.2%-0.25%.
7, the aluminium alloy that is used to make battery case according to claim 6 is characterized in that: the content of Ti is 0.05%-0.08%.
8, the aluminium alloy that is used to make battery case according to claim 7 is characterized in that: the content of Mn is 1%.
9, the aluminium alloy that is used to make battery case according to claim 8 is characterized in that: the content of Zr is 0.15%.
10, the aluminium alloy that is used to make battery case according to claim 9 is characterized in that: the content of Fe is 0.40%, and the content of Cu is 0.4%, and the content of Mg is 0.4%, and the content of Si is 0.23%, and the content of Ti is 0.065%.
11, a kind of any battery case that described aluminium alloy is made of aforesaid right requirement 1-10 that adopts.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610035068A CN100590214C (en) | 2006-04-13 | 2006-04-13 | Aluminum alloy for preparing battery shell |
| HK08104221.5A HK1109917A1 (en) | 2006-04-13 | 2008-04-15 | A aluminum alloy for making battery shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610035068A CN100590214C (en) | 2006-04-13 | 2006-04-13 | Aluminum alloy for preparing battery shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101054642A true CN101054642A (en) | 2007-10-17 |
| CN100590214C CN100590214C (en) | 2010-02-17 |
Family
ID=38794695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610035068A Active CN100590214C (en) | 2006-04-13 | 2006-04-13 | Aluminum alloy for preparing battery shell |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100590214C (en) |
| HK (1) | HK1109917A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851715A (en) * | 2009-03-31 | 2010-10-06 | 株式会社神户制钢所 | Aluminium alloy plate for battery case and battery case |
| CN102011032A (en) * | 2010-12-30 | 2011-04-13 | 上海交通大学 | Heat-resisting aluminum alloy for heat exchangers and preparation method thereof |
| CN102354732A (en) * | 2011-09-24 | 2012-02-15 | 李其真 | Manufacture process of automobile power battery enclosure |
| CN104204249A (en) * | 2012-10-12 | 2014-12-10 | 日本轻金属株式会社 | Aluminum alloy sheet for electric cell case, having excellent moldability, heat dissipation, and weldability |
| CN104388781A (en) * | 2014-11-19 | 2015-03-04 | 无锡鸿声铝业有限公司 | Aluminum alloy |
| CN104532065A (en) * | 2014-11-19 | 2015-04-22 | 无锡鸿声铝业有限公司 | Aluminum alloy |
| CN106086532A (en) * | 2016-06-20 | 2016-11-09 | 中铝瑞闽股份有限公司 | A kind of capacitor case aluminium alloy strips and preparation method thereof |
| CN106128797A (en) * | 2016-07-25 | 2016-11-16 | 宁波中车新能源科技有限公司 | A kind of ultracapacitor draws lug |
| CN106876615A (en) * | 2017-02-27 | 2017-06-20 | 中国东方电气集团有限公司 | A kind of sodium-sulphur battery anti-corrosion method |
| CN107130146A (en) * | 2017-06-07 | 2017-09-05 | 中铝瑞闽股份有限公司 | A kind of capacitor case aluminium alloy strips and preparation method thereof |
| CN107400807A (en) * | 2017-07-25 | 2017-11-28 | 杨仲彬 | A kind of power battery case aluminium alloy and its processing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5725345B2 (en) * | 2011-02-02 | 2015-05-27 | 日本軽金属株式会社 | Aluminum alloy sheet for battery cases with excellent formability and weldability |
-
2006
- 2006-04-13 CN CN200610035068A patent/CN100590214C/en active Active
-
2008
- 2008-04-15 HK HK08104221.5A patent/HK1109917A1/en unknown
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851715A (en) * | 2009-03-31 | 2010-10-06 | 株式会社神户制钢所 | Aluminium alloy plate for battery case and battery case |
| CN102011032A (en) * | 2010-12-30 | 2011-04-13 | 上海交通大学 | Heat-resisting aluminum alloy for heat exchangers and preparation method thereof |
| CN102354732A (en) * | 2011-09-24 | 2012-02-15 | 李其真 | Manufacture process of automobile power battery enclosure |
| CN104204249B (en) * | 2012-10-12 | 2017-10-13 | 日本轻金属株式会社 | The aluminium alloy plate for battery case of formability, thermal diffusivity and excellent weldability |
| CN104204249A (en) * | 2012-10-12 | 2014-12-10 | 日本轻金属株式会社 | Aluminum alloy sheet for electric cell case, having excellent moldability, heat dissipation, and weldability |
| CN104388781A (en) * | 2014-11-19 | 2015-03-04 | 无锡鸿声铝业有限公司 | Aluminum alloy |
| CN104532065A (en) * | 2014-11-19 | 2015-04-22 | 无锡鸿声铝业有限公司 | Aluminum alloy |
| CN106086532A (en) * | 2016-06-20 | 2016-11-09 | 中铝瑞闽股份有限公司 | A kind of capacitor case aluminium alloy strips and preparation method thereof |
| CN106128797A (en) * | 2016-07-25 | 2016-11-16 | 宁波中车新能源科技有限公司 | A kind of ultracapacitor draws lug |
| CN106128797B (en) * | 2016-07-25 | 2019-04-26 | 宁波中车新能源科技有限公司 | A kind of supercapacitor extraction tab |
| CN106876615A (en) * | 2017-02-27 | 2017-06-20 | 中国东方电气集团有限公司 | A kind of sodium-sulphur battery anti-corrosion method |
| CN107130146A (en) * | 2017-06-07 | 2017-09-05 | 中铝瑞闽股份有限公司 | A kind of capacitor case aluminium alloy strips and preparation method thereof |
| CN107400807A (en) * | 2017-07-25 | 2017-11-28 | 杨仲彬 | A kind of power battery case aluminium alloy and its processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1109917A1 (en) | 2008-06-27 |
| CN100590214C (en) | 2010-02-17 |
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