CN1190858C - Adhered Ni electrode and its making method - Google Patents
Adhered Ni electrode and its making method Download PDFInfo
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- CN1190858C CN1190858C CNB00114197XA CN00114197A CN1190858C CN 1190858 C CN1190858 C CN 1190858C CN B00114197X A CNB00114197X A CN B00114197XA CN 00114197 A CN00114197 A CN 00114197A CN 1190858 C CN1190858 C CN 1190858C
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- Prior art keywords
- electrode
- adhered
- nickel
- adhesive
- polytetrafluoroethylene
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- 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.)
- Expired - Fee Related
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- 238000000034 method Methods 0.000 title claims abstract description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 27
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 27
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 21
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 21
- 239000011149 active material Substances 0.000 claims abstract description 14
- 239000000853 adhesive Substances 0.000 claims abstract description 13
- 230000001070 adhesive effect Effects 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 14
- 239000011230 binding agent Substances 0.000 claims description 12
- 239000006258 conductive agent Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 6
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 6
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 6
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 6
- 229920000609 methyl cellulose Polymers 0.000 claims description 6
- 239000001923 methylcellulose Substances 0.000 claims description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 5
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000007900 aqueous suspension Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003513 alkali Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003411 electrode reaction Methods 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Substances [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 150000001869 cobalt compounds Chemical class 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 229910018916 CoOOH Inorganic materials 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004094 surface-active agent Substances 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
Abstract
The present invention relates to an adhesive nickel electrode and a production method thereof. The used adhesive comprises polytetrafluoroethylene and a hydrophilic adhesive. At room temperature, nickel hydroxide active material is premixed with a conduction agent, and then, the mixture is uniformly stirred with an adhesive, coated on a conduction supporter and baked for water removal to prepare an adhesive nickel electrode. The preparation method of the present invention has the advantages of capability of forming an electrode by one step, simple process in compounding and plate post treatment, no leftover bit and adoption to serial production. The nickel electrode of the present invention has good alkali resistance and high electrode reaction activity, the discharging voltage of the prepared battery is stable, and the service life is long.
Description
Technical field
The present invention relates to a kind of nickel electrode and manufacture method thereof, particularly relate to a kind of adhered Ni electrode and method for making thereof.
Background technology
Secondary alkaline batteries such as cadmium nickel, hydrogen nickel, zinc-nickel divide sintered type electrode and non-sintered type electrode usually with nickel electrode.For the sintered type nickel electrode manufacturing, be after applying the mixture of forming by adhesive and metal nickel powder on the ni substrate, to carry out sintering processes earlier, obtain the nickel porous substrate, with operations such as this substrate process nickel salt solution dipping, basification, repeated multiple times, make sintered type nickel electrode, this preparation section complexity, the active material packed density is low; And non-sintered type nickel electrode is representative with the foam nickel electrode, active material directly is filled into nickel foam porous body inside to be prepared from, this kind electrode method for making is simple, owing to adopted highly porous foaming nickel porous body, thereby can high density fill, make high-capacity battery, but because foaming process for preparing nickel complexity problems such as cost height have been brought.In order to address these problems, to have developed and used perforated metal to make the adhered Ni electrode of electrode current collecting body.
The U.S. the 4th that on October 8th, 1985 authorized, 546, a kind of adhered Ni electrode of No. 058 patent disclosure, by active material, conductive agent, polytetrafluoroethylene (PTFE) and other additive are rolled slivering, laminated into type and prepare with perforated metal then, in this process, polytetrafluoroethylene and above-mentioned material are through mixing to make it fibrillatable, and the active material flowability is very little, and the mutual set of dehydration back material is tight, but these manufacture method leftover bits are more, and production efficiency is low.
March 8 nineteen ninety-five, disclosed Chinese patent CN disclosed a kind of adhered Ni electrode that adopts polyethylene to make binding agent for 1099908A number, and this electrode adopts the extrusion molding of mixed active material once to be downloaded on the conductive mesh and makes; In this preparation method, except using nonaqueous solvents, whole blending process all with keeping slurry temperature at 125-150 ℃, increases operation easier, has also brought shortcomings such as cost height.
Summary of the invention
The inventor discovers by intensive, adopt polytetrafluoroethylene to make binding agent, because of its fibrillatable effect demonstrates than the tight anchorage of polyethylene, make nickel electrode can restrain oneself dipping by lye, improve battery useful life, in material, add hydrophilic agglomerant simultaneously and improve slurry fluidity, make the slurry that at room temperature is mixed with, can disposablely directly coat the perforated metal both sides; The adhered Ni electrode of drying punching molding, material is taken in no corner, can produce continuously in enormous quantities.Therefore,
First purpose of the present invention is to provide a kind of adhered Ni electrode,
Second purpose of the present invention is to provide a kind of manufacture method of as above-mentioned adhered Ni electrode.
First purpose of the present invention is realized by following technical scheme:
A kind of adhered Ni electrode, include one deck perforated metal as the conductivity support, and mainly mix the positive pole material of forming by nickel hydroxide active material and binding agent, conductive agent auxiliary substance, wherein, described binding agent is the mixed adhesive that includes polytetrafluoroethylene and hydrophilic agglomerant;
Wherein, described hydrophilic agglomerant comprises the mixture of at least a or its binary in methylcellulose, carboxymethyl cellulose, the hydroxypropyl methylcellulose, ternary;
Described hydrophilic agglomerant consumption is 0.3%-2% to the total weight ratio of positive pole material dry powder; Described polytetrafluoroethylene consumption is 1%-6% to the total weight ratio of positive pole material dry powder.
Technique scheme can further be improved to:
In above-mentioned adhered Ni electrode, described conductive agent includes powdery graphite, and its average grain diameter is less than 10 microns.
In above-mentioned adhered Ni electrode, described perforated metal panel material is selected from the nickel metal or is coated with the alloy of nickel metal.
Second purpose of the present invention realized by following technical scheme:
Preparation of the present invention is the method for adhered Ni electrode as the aforementioned, comprises the steps:
1), under the room temperature, nickel hydroxide active material and conductive agent auxiliary substance are pre-mixed, obtains batch mixing I;
2), under the room temperature, adhesive mixed to get slurry II with batch mixing I;
3), slurry II is coated on the perforated metal, oven dry is removed moisture and is made adhered Ni electrode;
Wherein, binding agent is the mixed adhesive that includes polytetrafluoroethylene and hydrophilic agglomerant;
Described hydrophilic agglomerant comprises the mixture of at least a or its binary in methylcellulose, carboxymethyl cellulose, the hydroxypropyl methylcellulose, ternary;
Described hydrophilic agglomerant consumption is 0.3%-2% to the total weight ratio of positive pole material dry powder;
Described polytetrafluoroethylene consumption is 1%-6% to the total weight ratio of positive pole material dry powder.
Technique scheme can further be improved to:
Described adhered Ni electrode preparation method is wherein the 2nd) in the step, earlier hydrophilic agglomerant is joined mix among the batch mixing I after, add the aqueous polytetrafluoroethylene of aqueous suspension again and mix.
In described adhered Ni electrode preparation method, described conductive agent includes powdery graphite, and its average grain diameter is less than 10 microns.
In described adhered Ni electrode preparation method, described perforated metal panel material is selected from the nickel metal or is coated with the alloy of nickel metal.
As previously mentioned, polytetrafluoroethylene is made binding agent, because of its fibrillatable effect demonstrates than the tight anchorage of polyethylene, but when the polytetrafluoroethylene consumption less than 1% the time, prepared electrode alkali resistance is relatively poor, is easy to powder of detached in the electrode cyclic process, and be higher than at 6% o'clock, active matter quality reduces relatively, and the electrode reaction decreased performance makes the battery discharge voltage platform low; Aforementioned binding agent also contains one or more hydrophilic agglomerants except comprising PTFE, this binding agent also will serve as the role of surfactant when playing cementation, to prevent the too early fibrillatable of PTFE.Specifiable hydrophilic agglomerant has, but is not limited to methylcellulose (MC), carboxymethyl cellulose (CMC), hydroxypropyl methylcellulose (HPMC).The 0.3-2% that the hydrophilic agglomerant consumption accounts for active material dry powder total weight is advisable, it is low that consumption is lower than 0.3% o'clock adhesion strength, PTFE also is easy to too early fibrillatable, consumption is higher than 2% o'clock electrode electric property and descends, alkaline resistance properties also reduces along with the increase of binding agent consumption, the collaborative performance of nickel electrodes that improves of polytetrafluoroethylene and hydrophilic agglomerant.
The aforementioned anodal material package of coating the conductive supporting member both sides contains active material nickel hydroxide and graphite, cobalt powder or cobalt compound or the two mixture conductive agent, and graphite adopts average grain diameter less than 10 microns powder, and addition is preferably the 2%-6% that accounts for the dry powder total weight.Cobalt powder or cobalt compound can form the good CoOOH of conductivity through oxidation and be covered in the active material surface in electrode, improve active material utilization.
Adhered Ni electrode manufacture method of the present invention, the mixed adhesive that adopts polytetrafluoroethylene and hydrophilic agglomerant to form, make slurry after, an extrusion molding electrode, batching and pole piece aftertreatment technology are simple, no leftover bits are suitable for serialization production; Adhered Ni electrode alkali resistance of the present invention is good, and electrode reaction is active high, and it is steady to make battery discharge voltage, and the life-span is long.
Description of drawings
Fig. 1 is the ickel-cadmium cell discharge curve.
Embodiment
Below with reference to embodiment the present invention is further specified, but be to be understood that embodiment does not constitute any limitation claim of the present invention.
Embodiment 1
Nickel hydroxide with 85 weight portions, the cobalt protoxide of 8 weight portions, the superbhort fiber of the graphite of 4 weight portions and 0.6 weight portion evenly mixes, add the sodium carboxymethylcellulose that accounts for dry powder total weight 0.5%, stirring obtains the slurry of homogeneous, add the PTFE water slurry that accounts for dry powder total weight 2% then, being stirred well to graphite is uniformly dispersed, then slurry is applied to the nickel plating perforated steel ribbon both sides of 80 micron thickness, back 0.7 millimeter of THICKNESS CONTROL, 100 ℃ of oven dry down in drying, be die-cut into the positive plate of 75mm * 40mm, with capacity be the cadmium cathode of 1000mAh, barrier film is assembled into battery, and electrolyte is the potassium hydroxide aqueous solution that is dissolved with lithium hydroxide, makes battery A.
Embodiment 2-3
Except PTFE water slurry consumption changes into 4%, 6%, all the other make battery B, C respectively with embodiment 1.
Comparative example 1
Except PTFE water slurry consumption changes into 0.8%, all the other are with embodiment 1.
Embodiment 4
Alkali resistance is estimated
Experimental technique: the pole piece that embodiment 1-3 and comparative example 1 are made places 30% sodium hydrate aqueous solution, places 48 hours under the room temperature, and it is dry to take out the back, to spread on the pole piece surface with the Pressure sensitive adhesive tape of homalographic, apply identical pressure, stripping tape is estimated and is fallen to expect the dry linting area then.
Experimental result: comparative example 1 made pole piece has 5% to peel off fully, and it is serious that remainder falls material, and made pole piece 1 part of embodiment 1-3 comes off, and pole piece 2 comes off on a small quantity, and pole piece 3 does not have obscission substantially.
Comparative example 2
Except that PTFE water slurry consumption changes into 10%, all the other make battery D with embodiment 1.
Embodiment 5
Battery performance is estimated:
The 1C discharge capacity of battery A, B, C, D, Charging state internal resistance and cycle life are listed in table 1:
Table 1
| The battery numbering | A | B | C | D |
| 1C capacity (mAh) | 695 | 701 | 643 | 583 |
| Charging state internal resistance (m Ω) | 23.1 | 23.3 | 23.4 | 25.2 |
| 400 circulation back capacity attenuations | - | - | 12％ | - |
The PTFE consumption is higher than at 6% o'clock, and the internal resistance of cell is obviously higher, and discharge capacity is low.
Comparative example 3
The slurry of embodiment 1 preparation evenly is applied to the foaming Ni substrate, and 100 ℃ of oven dry down roll, cut into the positive plate of 63mm * 40mm * 0.63mm, with capacity be that cadmium cathode, the barrier film of 1000mAh is assembled into battery, electrolyte is the potassium hydroxide aqueous solution that is dissolved with lithium hydroxide, makes battery E.
Embodiment 6
Battery A and E are carried out 1C lead discharge, draw discharge curve as shown in Figure 1, as can be seen, battery A is except being lower than the battery E in discharge early stage and later stage voltage, and MPV (mid-point voltage) is identical with battery E, and discharge voltage is more steady.
Claims (7)
1. adhered Ni electrode, include one deck perforated metal as the conductivity support, and mainly mix the positive pole material of forming by nickel hydroxide active material and binding agent, conductive agent auxiliary substance, it is characterized in that described binding agent is the mixed adhesive that includes polytetrafluoroethylene and hydrophilic agglomerant;
Wherein, hydrophilic agglomerant comprises the mixture of at least a or its binary in methylcellulose, carboxymethyl cellulose, the hydroxypropyl methylcellulose, ternary;
Described hydrophilic agglomerant consumption is 0.3%-2% to the total weight ratio of positive pole material dry powder;
Described polytetrafluoroethylene consumption is 1%-6% to the total weight ratio of positive pole material dry powder.
2. adhered Ni electrode according to claim 1 is characterized in that described conductive agent includes powdery graphite, and its average grain diameter is less than 10 microns.
3. adhered Ni electrode according to claim 1 and 2 is characterized in that described metal material is selected from the nickel metal or is coated with the alloy of nickel metal.
4. a method for preparing adhered Ni electrode as claimed in claim 1 comprises the steps:
1), under the room temperature, nickel hydroxide active material and conductive agent auxiliary substance are pre-mixed, obtains batch mixing I;
2), under the room temperature, adhesive mixed to get slurry II with batch mixing I;
3), slurry II is coated on the perforated metal, oven dry is removed moisture and is made adhered Ni electrode;
Wherein, binding agent is the mixed adhesive that includes polytetrafluoroethylene and hydrophilic agglomerant;
Described hydrophilic agglomerant comprises the mixture of at least a or its binary in methylcellulose, carboxymethyl cellulose, the hydroxypropyl methylcellulose, ternary;
Described hydrophilic agglomerant consumption is 0.3%-2% to the total weight ratio of positive pole material dry powder;
Described polytetrafluoroethylene consumption is 1%-6% to the total weight ratio of positive pole material dry powder.
5. adhered Ni electrode preparation method according to claim 4 is wherein the 2nd) in the step, earlier hydrophilic agglomerant is joined mix among the batch mixing I after, add the aqueous polytetrafluoroethylene of aqueous suspension again and mix.
6. adhered Ni electrode preparation method according to claim 4 is characterized in that described conductive agent includes powdery graphite, and its average grain diameter is less than 10 microns.
7. according to claim 4 or 5 or 6 described adhered Ni electrode preparation methods, it is characterized in that described metal material is selected from the nickel metal or is coated with the alloy of nickel metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00114197XA CN1190858C (en) | 2000-04-12 | 2000-04-12 | Adhered Ni electrode and its making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00114197XA CN1190858C (en) | 2000-04-12 | 2000-04-12 | Adhered Ni electrode and its making method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1317839A CN1317839A (en) | 2001-10-17 |
| CN1190858C true CN1190858C (en) | 2005-02-23 |
Family
ID=4583909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB00114197XA Expired - Fee Related CN1190858C (en) | 2000-04-12 | 2000-04-12 | Adhered Ni electrode and its making method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1190858C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074698A (en) * | 2010-12-24 | 2011-05-25 | 深圳市量能科技有限公司 | Manufacturing method for electrode slice and electrode slice |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352087C (en) * | 2004-07-29 | 2007-11-28 | 肇庆市风华锂电池有限公司 | Adhesion agent of anode, pulp for anode obtained, lithium battery ,and preparation method |
| CN100334754C (en) * | 2005-01-27 | 2007-08-29 | 广州市鹏辉电池有限公司 | Steel-tape nickel cathode and assemblied battery |
| CN101098002B (en) * | 2006-06-28 | 2010-12-22 | 比亚迪股份有限公司 | Nickel anode material and felt type nickel anode containing the same |
-
2000
- 2000-04-12 CN CNB00114197XA patent/CN1190858C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074698A (en) * | 2010-12-24 | 2011-05-25 | 深圳市量能科技有限公司 | Manufacturing method for electrode slice and electrode slice |
| CN102074698B (en) * | 2010-12-24 | 2013-03-20 | 深圳市量能科技有限公司 | Manufacturing method for electrode slice and electrode slice |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1317839A (en) | 2001-10-17 |
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Assignee: Shenzhen BYD Lithium Battery Co., Ltd. Assignor: Biyadi Co., Ltd. Contract fulfillment period: 2008.4.25 to 2012.11.19 Contract record no.: 2008440000071 Denomination of invention: Adhered Ni electrode and its making method Granted publication date: 20050223 License type: Exclusive license Record date: 20080513 |
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Granted publication date: 20050223 Termination date: 20160412 |