CN1389942A - Negative electrode of NiH2 battery and its making process - Google Patents
Negative electrode of NiH2 battery and its making process Download PDFInfo
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- CN1389942A CN1389942A CN02134370A CN02134370A CN1389942A CN 1389942 A CN1389942 A CN 1389942A CN 02134370 A CN02134370 A CN 02134370A CN 02134370 A CN02134370 A CN 02134370A CN 1389942 A CN1389942 A CN 1389942A
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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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Abstract
The invention relates to negative electrode of nickel-hydrogen batteries and producing method. The battery comprises the metal connection strap and the piece of negative electrode, which is the alloy being capable of storing hydrogen. The two sides of the metal connection strap are connected to the alloy piece respectively, that is the alloy piece is clipped in the middle of the metal connection straps connected as the integer body by using spot welding method. The invented nickel-hydrogen battery provides the features of high capacitance, good conductivity, easy to product and rapid. The method is suitable for manufacturing the negative electrode of nickel-hydrogen batteries in a great quantity.
Description
The negative pole and the manufacture method thereof of Ni-MH battery of the present invention belong to field of batteries, particularly a kind of manufacture method that relates to the ni-mh button cell.
The negative pole of present many Ni-MH batteries be adopt perforated steel ribbon or copper mesh or nickel foam etc. as the hydrogen storage alloy negative sheet substrate, then hydrogen bearing alloy, binding agent, water etc. are modulated to cathode size by a certain percentage, through slurry with cathode size be coated on the substrate, again drying, be rolled into certain thickness pole plate, this is a common method of making the negative plates of Ni-MH battery.For the pillar Ni-MH battery, the negative plates of said method production is cut into certain size, positive plate and membrane coil coiled one with certain size become pole piece.For the button Ni-MH battery, the general method that adopts folding pole piece, be about to be cut into negative plate, positive plate and the barrier film of certain size folding after, put into battery case.
The object of the present invention is to provide a kind of high power capacity, the nickel-hydrogen battery negative pole that conducts electricity very well and easy, produce the manufacture method of negative pole fast, be suitable for a large amount of productions of the negative pole of button cell.The objective of the invention is to reach by following measure, it is by metal connecting sheet, the hydrogen storage alloy negative sheet is formed, two at metal connecting sheet connect the hydrogen storage alloy negative sheet respectively, the hydrogen storage alloy negative sheet is clipped in the middle metal connecting sheet, adopt the method for spot welding to connect as a whole, the main effect of metal connecting sheet is the conductor that plays between the negative electrode active material, metal connecting sheet adopts metal material, as nickel plated steel strip, nickel plating punching steel band, copper strips, copper mesh, nickel strap, nickel screen etc., thickness for metal connecting sheet does not have special requirement, the thickness range of metal connecting sheet is 0.05-0.2mm, with metal material put the people dash touch in, punching becomes different shape and size, and is circular continuous as 2-4, perhaps 2-4 is individual square continuous, perhaps 2-4 oval linking to each other, perhaps 2-4 rhombus metal connector of grade that links to each other, hydrogen storage alloy negative sheet THICKNESS CONTROL is in the scope of 0.2-0.4mm, with pole plate put the people dash touch in, punching becomes different shape, and its shape needs the shape with metal connecting sheet identical or adapt, and can be circular, perhaps square, perhaps oval, perhaps rhombus etc. is got a kind of shape metal connector, 2 negative plates are clamped a shape body of brace, method with spot welding is their spot welding an one, solder joint number do not have special requirement, get final product with 3-5 solder joint.
The manufacture method of the negative pole of Ni-MH battery of the present invention comprises following operation:
1. the manufacturing of metal connecting sheet: used metal material can comprise nickel plated steel strip, nickel plating punching steel band, copper strips, copper mesh, nickel strap, nickel screen etc., thickness for above-mentioned material does not have special requirement, proper thickness range is 0.05-0.2mm, with above-mentioned metal material put the people dash touch in, punching becomes different shape and size such as 2-4 circular linking to each other, perhaps 2-4 is individual square continuous, perhaps 2-4 ellipse links to each other, perhaps 2-4 rhombus links to each other etc., and the main effect of this metal connector is the conductor that plays between the negative electrode active material.
2. the manufacturing of hydrogen storage alloy negative sheet: hydrogen bearing alloy, binding agent, water etc. are modulated to cathode size by a certain percentage, through slurry with cathode size be coated on the substrate, again drying, be rolled into certain thickness pole plate, this thickness can be controlled in the scope of 0.2-0.4mm and be advisable.With pole plate put the people dash touch in, punching becomes different shape, the shape and size of punching are to decide according to the needed shape of battery, and identical with the shape of metal connecting sheet or adapt.Can be circular, perhaps square, perhaps oval, perhaps rhombus etc.Remove bight burr, damaged and floating powder.
3. the manufacturing of negative pole: get certain shape metal connecting sheet, if the metal connecting sheet that 2 circles or other shapes link to each other, then use 4 identical negative plates of shape with it, 3 circles or other shapes metal connecting sheet that links to each other is then used 6 identical negative plates of shape with it, analogizes in proper order, per 2 negative plates are clamped a shape body of metal connecting sheet, method with spot welding is their spot welding an one, solder joint number do not have special requirement, get final product with 3-5 solder joint.
Nickel-hydrogen battery negative pole high power capacity of the present invention, conduct electricity very well, production cost is low, producing easyly, quick, is a kind of negative pole and manufacture method thereof that is suitable for producing in a large number the button Ni-MH battery, especially in the production process of pillar Ni-MH battery, can produce the leftover pieces of many hydrogen storage alloy negative sheets, adopt this method just these leftover pieces punchings can be become the needed shape of button cell cathode, with metal connecting sheet point postwelding, as the negative pole of button cell.
Accompanying drawing 1 is a metal connecting sheet structural representation of the present invention.
Accompanying drawing 2 is hydrogen storage alloy negative chip architecture schematic diagrames of the present invention.
Accompanying drawing 3 is structural representations of type of the present invention.
Accompanying drawing 4 is embodiments of the invention schematic diagrames.
Accompanying drawing 5 is embodiments of the invention schematic diagrames.
Accompanying drawing 6 is embodiments of the invention schematic diagrames.
Below in conjunction with accompanying drawing invention is described further.
As shown in Figure 1, the main effect of metal connecting sheet 1 of the present invention is the conductor that plays between the negative electrode active material, metal connecting sheet adopts metal material, as nickel plated steel strip, nickel plating punching steel band, copper strips, copper mesh, nickel strap, nickel screens etc. do not have special requirement for the thickness of metal connecting sheet, the thickness range of metal connecting sheet is 0.05-0.2mm, with metal material put the people dash touch in, punching becomes different shape and size, and is circular in this way, perhaps square, perhaps oval, perhaps rhombus etc. also can be circular continuous as 2-4.
As shown in Figure 2, hydrogen storage alloy negative sheet 2 of the present invention is that hydrogen bearing alloy, binding agent, water etc. are modulated to cathode size by a certain percentage, through slurry with cathode size be coated on the substrate, again drying, be rolled into certain thickness pole plate, THICKNESS CONTROL is in the scope of 0.2-0.4mm, with pole plate put the people dash touch in, punching becomes different shape, and the shape and size of punching are to decide according to the needed shape of battery, and identical with the shape of metal connecting sheet or adapt.Negative plate is circular, and is perhaps square, perhaps oval, perhaps rhombus etc.
As shown in Figure 3, the present invention is by metal connecting sheet 1, hydrogen storage alloy negative sheet 2 is formed, two at metal connecting sheet 1 connect hydrogen storage alloy negative sheet 2 respectively, the hydrogen storage alloy negative sheet is clipped in the middle metal connecting sheet, adopt the method for spot welding to connect as a whole, the main effect of metal connecting sheet is the conductor that plays between the negative electrode active material, and metal connecting sheet adopts metal material, and punching becomes different shape and size, can be circular, perhaps square, perhaps oval, perhaps rhombus etc., also can be as 2-4 circular linking to each other, perhaps 2-4 square linking to each other, perhaps 2-4 ellipse links to each other, perhaps 2-4 the metal connector that rhombus links to each other and waits, the hydrogen storage alloy negative sheet is that the pole plate punching is become different shape, can be circular, perhaps square, perhaps oval, perhaps rhombus etc., getting a kind of shape metal connector, 2 negative plates are clamped a shape body of brace, is their spot welding one with the method for spot welding.
The invention will be further described below in conjunction with embodiment.
Embodiment
Embodiment adopts the present invention to make the 280k button cell, the manufacture method of its negative pole is to adopt the perforation nickel plated steel strip as metal connecting sheet, and the nickel plated steel strip of will bore a hole is put the people in touch, and punching becomes 3 circular phase disjunctors, circular diameter is 20mm, and the length of phase disjunctor is 3mm.As shown in Figure 4, with hydrogen bearing alloy, binding agent, water etc. are modulated to cathode size by a certain percentage, through slurry cathode size is coated on the substrate, drying again, be rolled into the pole plate of 0.32 ± 0.01mm, with pole plate punching diameter is the circular negative plate of 20mm, as shown in Figure 5, get 6 hydrogen bearing alloy pole pieces, be clipped in the both sides of a negative pole brace respectively, as shown in Figure 6, with 6 hydrogen storage alloy negative sheets and the spot welding of a negative pole brace is one, after this negative pole and positive pole and barrier film be folded into a cylinder, in the shell of the 280k button cell of packing into, just finished the 280k button cell after sealing and made.Adopt manufacture method of the present invention, the hydrogen-storage alloy electrode plate that can produce high power capacity in a large number, conduct electricity very well.
Claims (6)
1, a kind of negative pole of Ni-MH battery is characterized in that being made up of metal connecting sheet, hydrogen storage alloy negative sheet, connects the hydrogen storage alloy negative sheet respectively two of metal connecting sheet, and the hydrogen storage alloy negative sheet is clipped in the middle metal connecting sheet.
2, the negative pole of Ni-MH battery according to claim 1 is characterized in that 2 negative plates are clamped a shape body of brace, is their spot welding one with the method for spot welding.
3, the negative pole of Ni-MH battery according to claim 1, the shape that it is characterized in that metal connecting sheet are circular, perhaps square, and be perhaps oval, perhaps rhombus.
4, the negative pole of Ni-MH battery according to claim 1 is characterized in that negative plate is circular, perhaps square, and is perhaps oval, perhaps rhombus.
5, a kind of method for manufacturing negative pole of Ni-MH battery, the manufacturing of metal connecting sheet with sheet of metallic material put the people dash touch in, punching becomes different shape and size, the hydrogen storage alloy negative sheet is that hydrogen bearing alloy, binding agent, water etc. are modulated to cathode size by a certain percentage, through slurry with cathode size be coated on the substrate, again drying, be rolled into certain thickness pole plate, with pole plate put the people dash touch in, punching becomes different shape, it is characterized in that per 2 negative plates are clamped a metal connecting sheet, is their spot welding one with the method for spot welding.
6, the method for manufacturing negative pole of Ni-MH battery according to claim 5, it is characterized in that metal material can be nickel plated steel strip or nickel plating punching steel band or copper strips or copper mesh or nickel strap or nickel screen, thickness range is 0.05-0.2mm, and the shape of metal connecting sheet is circular, perhaps square, perhaps oval, perhaps rhombus, negative plate are circular, perhaps square, perhaps oval, perhaps rhombus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021343705A CN1204638C (en) | 2002-07-17 | 2002-07-17 | Negative electrode of NiH2 battery and its making process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021343705A CN1204638C (en) | 2002-07-17 | 2002-07-17 | Negative electrode of NiH2 battery and its making process |
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| Publication Number | Publication Date |
|---|---|
| CN1389942A true CN1389942A (en) | 2003-01-08 |
| CN1204638C CN1204638C (en) | 2005-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021343705A Expired - Lifetime CN1204638C (en) | 2002-07-17 | 2002-07-17 | Negative electrode of NiH2 battery and its making process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346296A (en) * | 2013-07-01 | 2013-10-09 | 泉州劲鑫电子有限公司 | Ultralow-capacity battery and powder pulling die for manufacturing battery |
| CN103700894A (en) * | 2013-11-21 | 2014-04-02 | 山东润昇电源科技有限公司 | Method for producing nickel-metal hydride button battery from novel compound nickel electrode |
| CN110071321A (en) * | 2018-01-22 | 2019-07-30 | 大众汽车有限公司 | Manufacture is used for the method for the electrode stack of energy accumulator, stack equipment |
-
2002
- 2002-07-17 CN CNB021343705A patent/CN1204638C/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346296A (en) * | 2013-07-01 | 2013-10-09 | 泉州劲鑫电子有限公司 | Ultralow-capacity battery and powder pulling die for manufacturing battery |
| CN104900852A (en) * | 2013-07-01 | 2015-09-09 | 泉州劲鑫电子有限公司 | Powder pulling die for manufacturing ultra-low-capacity battery |
| CN103346296B (en) * | 2013-07-01 | 2015-11-11 | 泉州劲鑫电子有限公司 | A kind of battery of ultra-low volume and make this battery draw powder mould |
| CN104900852B (en) * | 2013-07-01 | 2017-03-15 | 泉州劲鑫电子有限公司 | A kind of drawing powder mould for making low-capacity batteries |
| CN103700894A (en) * | 2013-11-21 | 2014-04-02 | 山东润昇电源科技有限公司 | Method for producing nickel-metal hydride button battery from novel compound nickel electrode |
| CN110071321A (en) * | 2018-01-22 | 2019-07-30 | 大众汽车有限公司 | Manufacture is used for the method for the electrode stack of energy accumulator, stack equipment |
| CN110071321B (en) * | 2018-01-22 | 2022-04-26 | 大众汽车有限公司 | Method for producing an electrode stack for an energy store, stacking device |
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| Publication number | Publication date |
|---|---|
| CN1204638C (en) | 2005-06-01 |
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Owner name: GUANGZHOU GREAT POWER ENERGY + TECHNOLOGY CO., LTD Free format text: FORMER NAME: PENGHUI BATTERY CO., LTD., GUANGZHOU |
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Address after: 511483 sand pit village, Shawan Town, Guangzhou, Guangdong, Panyu District Patentee after: GUANGZHOU GREAT POWER ENERGY & TECHNOLOGY Co.,Ltd. Address before: 511483 sand pit village, Shawan Town, Guangzhou, Guangdong, Panyu District Patentee before: Guangzhou Great Power Battery Co.,Ltd. |
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Address after: 511483 Guangzhou City, Panyu District Shawan Town Liang Road (West Village section of No. 912) Patentee after: GUANGZHOU GREAT POWER ENERGY & TECHNOLOGY Co.,Ltd. Address before: 511483 sand pit village, Shawan Town, Guangzhou, Guangdong, Panyu District Patentee before: GUANGZHOU GREAT POWER ENERGY & TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20050601 |
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