CN1761088A - Method for fabricating nickel electrode in nickel hydrogen battery - Google Patents
Method for fabricating nickel electrode in nickel hydrogen battery Download PDFInfo
- Publication number
- CN1761088A CN1761088A CNA2005100365567A CN200510036556A CN1761088A CN 1761088 A CN1761088 A CN 1761088A CN A2005100365567 A CNA2005100365567 A CN A2005100365567A CN 200510036556 A CN200510036556 A CN 200510036556A CN 1761088 A CN1761088 A CN 1761088A
- Authority
- CN
- China
- Prior art keywords
- active material
- nickel
- battery
- matrix
- lug
- 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.)
- Pending
Links
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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The method includes steps: preparation step, preparing paste of containing active material and basal body of nickel electrode; filling step, filling paste to the basal body; drying step, drying the basal body with paste being filled to make the paste dry; roller compaction step makes active material in basal body in sturdiness; cleaning step determines zone for welding pole ear, and cleaning active material out; and welding pole ear on the zone. Features are: high processing effect, large amount of active material filled, high use ratio. Comparing with prior art, the invention increases 1-3% battery capacity, capability of process index (CPK value) of internal resistance of battery larger than and equal to 1.2 (general CPK value is 0.8-1.0), reduces 0.5-2% imperfect rate of batteries.
Description
[technical field]
The present invention relates to a kind of preparation method of rechargeable battery, be meant the nickel electrode preparation method of nickel metal hydride battery (following abbreviation Ni-MH battery) especially.
[background technology]
Ni-MH battery is domestic and international in recent years a kind of novel alkaline rechargeable battery of research and development energetically, use more and more widely in fields such as communication and digital product, electric tool, instrument and meter, toys now, aspects such as the capacity of battery, life-span, consistency, storge quality have correspondingly been proposed more requirement, and the Ni-MH battery of existing high power capacity not enough show more obvious aspect life-span, storge quality, therefore, the raising high-capacity nickel-hydrogen battery is very important in the performance aspect above-mentioned.
At present, on Ni-MH battery was at home produced, the production of nickel electrode mainly contained dual mode: a kind of is first spot welding lug pasting or last powder again; A kind of is to reserve the lug position earlier to carry out pasting again or go up powder.Yet; the former makes through regular meeting and has floating powder on the electrode; simultaneously owing to roll in the process at pole piece; the base material of lug position differs with the base material extension ratio that is rich in active material; make pole piece produce slight crack easily; can influence the internal resistance and the life-span of the retention of charge and the battery of battery product, it is insufficient simultaneously active material to be utilized.And the latter is because technical characterstic, remaining nonconducting active material in the lug position easily, make that lug spot welding when lug spot welding is not firm even destroyed, perhaps make on the matrix and produce the blank area that some do not have active material around the lug position, can't guarantee the active material of q.s.Formerly reserve in the electrode production of lug position, because the restriction of the assurance level of equipment and former material in producing, make the lug position of each pole piece to reach and fit like a glove that the battery electrical property that causes pole piece to be made is also inconsistent.
[summary of the invention]
Technical problem to be solved by this invention is: a kind of nickel electrode preparation method of Ni-MH battery is provided, under the prerequisite that does not influence other performances of battery, makes and as far as possible active materials of filling in the battery limited space reduce the defective products that production system produces more.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of nickel electrode preparation method of Ni-MH battery is provided, comprises the steps:
Preparation process, the matrix of preparing slurry and supplying the nickel electrode of slurry filling, wherein slurry consists predominantly of active material;
Filling step is filled in prepared slurry on the matrix;
Drying steps carries out dried with the matrix of having filled slurry, makes slurry drying;
Roll step, roll the active material on the matrix solid;
Cleaning step is determined the lug welding region on the matrix, and the active material in the lug welding region is removed;
The lug welding step is welded in lug welding region place on the matrix with lug.
Owing to adopt technique scheme, the present invention has following beneficial effect: the present invention is not owing to reserve earlier the lug position on matrix, and fill at active material, drying also rolls the active material of determining the lug welding region according to technological requirement on matrix more afterwards and washing the lug welding region, the working (machining) efficiency height, activity substance filling amount is big, the utilance height, battery capacity can increase by 1～3% on year-on-year basis, the process capability of the internal resistance of cell (CPK value) 〉=1.2, transnormal 0.8～1.0, and can guarantee the consistency of lug position, the battery fraction defective reduces 0.5～2%.
[description of drawings]
Fig. 1 is the nickel electrode preparation method's of a kind of Ni-MH battery of the present invention a process chart.
[embodiment]
As shown in Figure 1, the invention provides a kind of nickel electrode preparation method of Ni-MH battery, it mainly comprises the steps:
Preparation process, the matrix of preparing slurry and supplying the nickel electrode of slurry filling, wherein slurry consists predominantly of active material;
Filling step is filled in the slurry for preparing on the matrix;
Drying steps carries out dried with the matrix of having filled slurry, makes slurry drying;
Roll step, roll the active material on the matrix solid;
Cleaning step is determined the lug welding region on the matrix, and removes the active material in the clean lug welding region;
The lug welding step is welded in lug welding region place on the matrix with lug.
Wherein, the matrix of described nickel electrode is meant foaming nickel sheet material.
Described lug is meant metallic nickel sheet or nickel plating sheet metal.
Described active material is meant the ball-type nickel hydroxide or coats the ball-type nickel hydroxide of cobalt, also contains CoO, Co, rare earth or an amount of binder and conductive agent in the slurry.
In drying steps, can adopt the drying tunnel stove to dry usually, during oven dry, adjustment to 50～200 ℃, the oven dry processing time is 5～60 minutes.
In cleaning step, remove the mode that active material can adopt ultrasonic waves for cleaning.Specifically, adopt the ultrasonic waves for cleaning mode to clean out the lug welding region of corresponding size according to the technological requirement of the lug position of various pole pieces.
In the lug welding step, lug can adopt the mode of spot welding to be welded on the matrix.
The present invention is not because the lug position is reserved earlier in employing on matrix, after filling the back and roll, active material adopt ultrasonic waves for cleaning to fall the active material of lug position according to technological requirement again, can avoid the defective of aforementioned prior art, and has the working (machining) efficiency height, activity substance filling amount is big, utilance is high, spot welding is firm, does not damage characteristics such as pole piece.And can make battery capacity increase by 1～3% on year-on-year basis, and the process capability of the internal resistance of cell (CPK value) 〉=1.2, transnormal 0.8～1.0, the battery fraction defective reduces 0.5～2%.
Example:
Before nickel electrode was produced, being ready to thickness was the foaming nickel of the corresponding size of 1.0～2.2mm, puts its thickness to 0.5～2.0mm in order, and prepares active material slurry; Then earlier do not carry out the precompressed of any lug position, and dry after evenly being filled into positive active material; Afterwards, again the base material of whole populated active material is rolled to thickness be 0.4～1.5mm; Then, determine the lug welding region, and carry out corresponding cleaning according to technological requirement at the lug welding region, to remove the active material slurry in this zone with ultrasonic equipment; At last can be by lug in the spot welding connection in the lug welding region.Under the prerequisite that does not increase any waste product, guarantee the consistency of pole piece like this, guaranteed loading to greatest extent simultaneously.
Describe below in conjunction with 10000 AA point 2000mAh Ni-MH batteries: it is 300～500g/m that battery nickel electrode conduction body adopts surface density
2Foaming nickel, put its thickness to 1.2～2.0mm in order.Active material adopts spherical zincification hickelous nydroxide, and other additives have 2～7% CoO (cobalt oxide), 0～3%Co (cobalt), 0～5% nickel powder, 0～1% PTFE (polytetrafluoroethylene).After active material is evenly populated and dry, roll to thickness be 0.5～1.0mm, remove active material according to the process using ultrasonic waves for cleaning then, last spot welding connects goes up lug and gets final product.It is 200～500g/m that the battery metal hydride electrode adopts surface density
2Foaming nickel, metal tiltedly draw in the net or the porous metals sheet, hydrogen bearing alloy adopts rich lanthanum of 150～200 purposes or rich cerium alloy, other additives are 0～3% nickel powder, 0～1% PTFE.Battery electrolyte adopts the mixed solution of potassium hydroxide, lithium hydroxide, NaOH, and density is 1.29～1.33g/m
3, barrier film adopts the nonwoven fabrics of 0.10～0.18mm thickness.After producing battery according to this method, detecting the average discharge capacity of 0.2C is 2075mAh, and the control cell average size is 2028mAh, increases by 2.3% on year-on-year basis; The battery accepted product percentage is 98.6%, and the control cell qualification rate is 97.3%, and qualification rate has improved 1.3%.
Claims (7)
1, a kind of nickel electrode preparation method of Ni-MH battery comprises the steps:
Preparation process, the matrix of preparing slurry and supplying the nickel electrode of slurry filling, wherein slurry consists predominantly of active material;
Filling step is filled in prepared slurry on the matrix;
Drying steps carries out dried with the matrix of having filled slurry, makes slurry drying;
Roll step, roll the active material on the matrix solid;
Cleaning step is determined the lug welding region on the matrix, and removes the active material in the clean lug welding region;
The lug welding step is welded in lug welding region place on the matrix with lug.
2, the nickel electrode preparation method of a kind of Ni-MH battery as claimed in claim 1 is characterized in that: adopt the ultrasonic waves for cleaning mode to remove the interior active material of lug welding region in the cleaning step.
3, the nickel electrode preparation method of a kind of Ni-MH battery as claimed in claim 1 or 2 is characterized in that: the matrix of described nickel electrode is foaming nickel sheet material.
4, the nickel electrode preparation method of a kind of Ni-MH battery as claimed in claim 1 or 2, it is characterized in that: described active material is ball-type nickel hydroxide or the ball-type nickel hydroxide that coats cobalt, also contains CoO, Co, rare earth or an amount of binder and conductive agent in the slurry.
5, the nickel electrode preparation method of a kind of Ni-MH battery as claimed in claim 1 is characterized in that: described lug is metallic nickel sheet or nickel plating sheet metal.
6, as the nickel electrode preparation method of claim 1 or 5 described a kind of Ni-MH batteries, it is characterized in that: in the lug welding step, adopt the spot welding mode that lug is welded on the matrix.
7, the nickel electrode preparation method of a kind of Ni-MH battery as claimed in claim 1 is characterized in that: in the drying steps, adopt the drying tunnel stove to dry, and during oven dry, adjustment to 50～200 ℃, the oven dry processing time is 5～60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100365567A CN1761088A (en) | 2005-08-18 | 2005-08-18 | Method for fabricating nickel electrode in nickel hydrogen battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100365567A CN1761088A (en) | 2005-08-18 | 2005-08-18 | Method for fabricating nickel electrode in nickel hydrogen battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1761088A true CN1761088A (en) | 2006-04-19 |
Family
ID=36707073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100365567A Pending CN1761088A (en) | 2005-08-18 | 2005-08-18 | Method for fabricating nickel electrode in nickel hydrogen battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1761088A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011072587A1 (en) * | 2009-12-15 | 2011-06-23 | 深圳市倍特力电池有限公司 | Preparation method of nickel battery |
| CN102263255A (en) * | 2011-06-27 | 2011-11-30 | 泉州劲鑫电子有限公司 | Method for preparing anode of high-power nickel-hydrogen battery |
| CN104659340A (en) * | 2015-02-16 | 2015-05-27 | 徐象华 | Production process of nickel-based high-energy battery pole plate |
| CN106328880A (en) * | 2016-08-24 | 2017-01-11 | 东莞市先诺电子材料有限公司 | Surface processing method of tab easily plated with tin |
| CN111180697A (en) * | 2019-12-31 | 2020-05-19 | 深圳拓量技术有限公司 | Nickel-hydrogen battery for ultralow temperature environment |
| CN112582583A (en) * | 2020-12-15 | 2021-03-30 | 东莞维科电池有限公司 | Preparation method of quick-charging type lithium ion battery pole piece, pole piece and lithium ion battery |
-
2005
- 2005-08-18 CN CNA2005100365567A patent/CN1761088A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011072587A1 (en) * | 2009-12-15 | 2011-06-23 | 深圳市倍特力电池有限公司 | Preparation method of nickel battery |
| CN102263255A (en) * | 2011-06-27 | 2011-11-30 | 泉州劲鑫电子有限公司 | Method for preparing anode of high-power nickel-hydrogen battery |
| CN104659340A (en) * | 2015-02-16 | 2015-05-27 | 徐象华 | Production process of nickel-based high-energy battery pole plate |
| CN106328880A (en) * | 2016-08-24 | 2017-01-11 | 东莞市先诺电子材料有限公司 | Surface processing method of tab easily plated with tin |
| CN111180697A (en) * | 2019-12-31 | 2020-05-19 | 深圳拓量技术有限公司 | Nickel-hydrogen battery for ultralow temperature environment |
| CN112582583A (en) * | 2020-12-15 | 2021-03-30 | 东莞维科电池有限公司 | Preparation method of quick-charging type lithium ion battery pole piece, pole piece and lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5033164B2 (en) | Manufacturing method of paste type thin electrode for battery | |
| CN1167157C (en) | Non-sintered electrode and method of manufacturing same | |
| JP5062724B2 (en) | Method for producing nickel electrode for alkaline battery and nickel electrode for alkaline battery | |
| CN100347883C (en) | Manufacturing method of negative electrode plate of Ni-H cell | |
| CN1761088A (en) | Method for fabricating nickel electrode in nickel hydrogen battery | |
| WO2015087948A1 (en) | Carbon material-coated metal porous body, collector, electrode, and power storage device | |
| JP2017027654A (en) | Carbon material-coated metal porous body, collector, electrode, and power storage device | |
| JP4536289B2 (en) | Paste type thin electrode for battery, method for producing the same, and secondary battery | |
| CN1909265B (en) | Lithium ion battery negative electrode prepared by metal nano-wire and its preparation method | |
| JP2000048823A (en) | Non-sintering type electrode and manufacture thereof | |
| CN104064371A (en) | Preparation method of Ni/C positive pole slurry and piece for super-capacitor battery | |
| CN101150193A (en) | Battery electrode substrate and electrode using the same | |
| CN203134918U (en) | High-power nickel-metal hydride battery | |
| CN2859827Y (en) | Nickel-hydrogen dynamic cell | |
| CN1185729C (en) | Manufacturing method of alkaline battery electrode and battery produced using said method | |
| CN2247379Y (en) | nickel hydrogen cell for moveable telephone | |
| CN2247377Y (en) | High capacity hydrogen storage alloy electrode | |
| JP2006040698A (en) | Positive electrode for alkaline storage battery and alkaline storage battery | |
| CN2696139Y (en) | Large content high power nickle-cadmium charging cell | |
| JP2008117579A (en) | Hydrogen absorbing alloy negative electrode for alkaline battery | |
| JP2000285922A (en) | Alkaline storage battery, and manufacture of its electrode | |
| CN1275457A (en) | Metal strip coated with foamed nickel material and manufacturing method thereof | |
| CN1107353C (en) | Manufacture technology of positive plate for nickel-hydrogen cell | |
| CN1427492A (en) | Manufacturing method of alkaline battery electrode and battery produced using said method | |
| EP0403052A1 (en) | Nickel electrode and alkaline battery using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |