CN108011134B - High-efficiency nickel-hydrogen battery - Google Patents
High-efficiency nickel-hydrogen battery Download PDFInfo
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- CN108011134B CN108011134B CN201711246494.1A CN201711246494A CN108011134B CN 108011134 B CN108011134 B CN 108011134B CN 201711246494 A CN201711246494 A CN 201711246494A CN 108011134 B CN108011134 B CN 108011134B
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- plate
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- current collecting
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- 239000001257 hydrogen Substances 0.000 title description 10
- 229910052739 hydrogen Inorganic materials 0.000 title description 10
- 238000003475 lamination Methods 0.000 claims abstract description 25
- 229910052987 metal hydride Inorganic materials 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims description 8
- GQWNECFJGBQMBO-UHFFFAOYSA-N Molindone hydrochloride Chemical compound Cl.O=C1C=2C(CC)=C(C)NC=2CCC1CN1CCOCC1 GQWNECFJGBQMBO-UHFFFAOYSA-N 0.000 claims 1
- 238000003466 welding Methods 0.000 description 9
- 239000000376 reactant Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The invention belongs to the field of nickel-metal hydride batteries, and relates to a nickel-metal hydride battery, which comprises a shell, a cap, a battery cell arranged in the shell and a current collecting plate arranged between the battery cell and the upper end face and the lower end face of the shell, wherein the battery cell is in a lamination shape, the battery cell comprises at least one lamination, the lamination comprises a positive plate, a negative plate and a diaphragm arranged between the positive plate and the negative plate, the positive plate is connected with the positive current collecting plate, and the negative plate is connected with the negative current collecting plate; the positive plates are m-like, the negative plates are u-shaped, the negative plates are inserted between the positive plates, and the thickness of the negative plates is twice that of the positive plates; or the positive plate is u-shaped, the negative plate is in an inverted m-like shape, the positive plate is inserted between the negative plates, and the thickness of the positive plate is twice that of the negative plate. The nickel-metal hydride battery disclosed by the invention can fully utilize the battery space, has large storage electric quantity, double collection of current and high charge and discharge efficiency.
Description
Technical Field
The invention belongs to the field of batteries, and relates to a high-efficiency nickel-hydrogen battery.
Background
As fossil fuels continue to be mined with less and less reserves, attempts are continually being made to find new energy sources. In recent years, hydrogen energy has been attracting attention, and nickel-metal hydride batteries have been developed. The nickel-hydrogen battery is a clean energy source, and has the characteristics of environmental protection, no memory effect and the like compared with the nickel-cadmium battery. Most of the battery cells of the nickel-metal hydride batteries on the market at present are in a winding structure, the internal space of the battery cells cannot be well utilized, and most of the battery cells need to be inserted with graphite rods and other structures.
Chinese patent application number 201120023136.6 discloses a high power nickel-hydrogen battery, which comprises a housing, a core, an anode, a cathode, an anode current collecting plate, a cathode current collecting plate, a battery cover and a sealing ring, wherein the anode is assembled into a flat end surface and then is connected with the end surface of the anode current collecting plate in an annular spot welding manner, and the anode current collecting plate is connected with the battery cover in a spot welding manner; the end faces of the negative electrode and the negative electrode current collecting piece are in annular spot welding connection, and the negative electrode current collecting piece is in spot welding connection with the bottom of the shell. The patent is that the pole piece is the roll form, and inside still is equipped with core occupation space, and the space of positive and negative pole piece is taken up partly, and then battery power storage will be less relatively.
Chinese patent application number 201410314154.8 discloses a method for preparing a laminated cell, comprising the steps of: and (3) arranging a lamination stack: the lamination stack comprises n lamination groups, each lamination group comprises m pole piece elements, n is more than or equal to2, m is more than or equal to2, gaskets are arranged between adjacent lamination groups, the pole piece elements of all lamination groups of the lamination stack and the gaskets between the adjacent lamination groups are sequentially positioned in Z-shaped isolating films along the stacking direction, and each gasket separates the upper part and the lower part of the isolating film adjacent to the gasket; forming a laminated cell: and breaking the isolating film at one end of each spacer in the isolating film so that each spacer and each lamination group can be separated from each other to obtain laminated battery cells formed by pole piece elements in each lamination group and the corresponding isolating film, wherein each laminated battery cell comprises a positive pole piece and a negative pole piece, or a single battery cell, or a combination of the single battery cell and the positive pole piece and/or the negative pole piece. The patent adopts a laminated structure, the space ratio of the positive plate and the negative plate is increased, the electricity storage capacity is increased, but the discharging efficiency is lower.
Disclosure of Invention
The invention aims to provide a nickel-hydrogen battery which improves the space ratio of positive and negative plates in the battery and has high-efficiency charge and discharge performance, aiming at the defects of the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a high-efficient nickel-metal hydride battery, includes shell, lid, arranges the electric core in the shell and locates the current collecting plate between electric core and the upper and lower terminal surface of shell, the electric core is the lamination form, the electric core includes at least one lamination, the lamination includes positive plate, negative plate and locates the diaphragm between positive plate and the negative plate.
Further, the positive plates are m-like, the negative plates are u-shaped, and the negative plates are inserted between the positive plates.
Further, the thickness of the negative plate is 1.5 times that of the positive plate.
Further, the positive plates are u-shaped, the negative plates are inverted m-like, and the positive plates are inserted between the negative plates.
Further, the thickness of the positive plate is 1.5 times that of the negative plate.
Further, the positive plate is connected with the current collecting plate in a line.
Further, the negative plate is connected with the current collecting plate in a line.
Further, a vent hole is formed in one end, close to the shell, of the cap.
The invention has the beneficial effects that:
1. The electricity storage capacity is large: the nickel-hydrogen battery adopts a lamination structure, and the space inside the battery shell is filled with the positive and negative plates, and no space occupied by a graphite core and the like is occupied, so that more electric quantity can be stored;
2. The charge and discharge efficiency is high: the nickel-hydrogen battery is formed by superposing a plurality of laminations, the positive plate and the negative plate are of arc structures, the current can be preliminarily collected, and then the current is further collected through the current collecting plate, so that the effect of high-efficiency charge and discharge of the battery can be realized.
Drawings
FIG. 1 is a schematic diagram of a high efficiency nickel-metal hydride battery;
FIG. 2 is a schematic diagram of a high efficiency nickel-metal hydride battery in accordance with another embodiment;
Fig. 3 is a schematic diagram of the weld line of the positive current collector plate and the positive plate.
The marks in the figure are as follows: 1-shell, 2-cap, 3-positive plate, 4-negative plate, 5-diaphragm, 601-positive current collecting plate, 602-negative current collecting plate, 7-connecting wire.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, in an embodiment, a high-efficiency nickel-metal hydride battery includes a housing 1, a cap 2, a battery cell disposed in the housing 1, and a current collecting plate disposed between the battery cell and upper and lower end surfaces of the housing 1, where the battery cell is in a laminated shape, and the battery cell includes at least one laminated sheet, and the laminated sheet includes a positive electrode sheet 3, a negative electrode sheet 4, and a separator 5 disposed between the positive electrode sheet 3 and the negative electrode sheet 4. In the embodiment, the cap 2 is welded to the central position of one end of the shell 1 to form the appearance of the battery, and the cap 2 can be adhered to the shell 1 through conductive adhesive; the current collecting plates comprise a positive current collecting plate 601 arranged close to the cap 2 and a negative current collecting plate 602 arranged far away from one end of the cap 2; the cap 2 is connected with the positive current collecting plate 601 by welding to achieve the conductive effect. Referring to fig. 1, in the embodiment, the battery cell includes five laminations, the laminations are transversely stacked together in the housing 1 to form the battery cell, each lamination includes a positive plate 3 and a negative plate 4, and a separator 5 is disposed between the positive plate 3 and the negative plate 4; the positive plate 3 is connected with the positive current collecting plate 601 in a welding way, and the negative current collecting plate 602 is connected with the negative current collecting plate 602 in a welding way so as to achieve the effect of electric conduction; the positive plate 3 and the positive current collecting plate 601 can be adhered by conductive adhesive, and the negative plate 4 and the negative current collecting plate 602 can be adhered by conductive adhesive. In the embodiment, the positive electrode plate 3 is a nickel electrode, and the negative electrode plate 4 is a hydrogen storage alloy.
Referring to fig. 2, in another embodiment, the battery cell comprises three laminations, which are stacked laterally inside the housing 1. In another embodiment, the battery cells may be provided with a laminate, depending on the battery capacity requirements.
Referring to fig. 1, in the embodiment, the positive electrode plates 3 are m-like, the negative electrode plates 4 are u-shaped, and the negative electrode plates 4 are inserted between the positive electrode plates 3. The thickness of the negative electrode sheet 4 is 1.5 times that of the positive electrode sheet 3. In the embodiment, the positive plate 3 is m-shaped, and is arc-shaped at the contact position with the positive current collecting plate 601, so that the current can be primarily collected, and then further collected through the positive current collecting plate 601, thereby achieving the effect of efficiently collecting the current, and further enabling the battery to be charged and discharged efficiently. The negative plate 4 is u-shaped, and the contact position of the negative plate with the negative current collecting plate 602 is arc-shaped, so that electrons are primarily collected, and further collected through the current collecting plate, and the effect of high-efficiency charge and discharge is achieved; the negative plate 4 is inserted into the positive plate 3 to form a structure of positive plate-negative plate-positive plate; the thickness of the negative electrode plate 4 is 1.5 times of the thickness of the positive electrode plate 3 so as to realize the effect of balanced and full reaction of reactants of the positive electrode plate 3 and the negative electrode plate 4, the thicknesses of the positive electrode plate 3 and the negative electrode plate 4 are not excluded, and the concentration ratio of the reactants of the positive electrode plate 3 and the negative electrode plate 4 in the electrode plate is changed so as to achieve the aim of full reaction of the reactants of the positive electrode plate 3 and the negative electrode plate 4.
Referring to fig. 2, in another embodiment, the positive electrode plates 3 are u-shaped, the negative electrode plates 4 are inverted m-like, and the positive electrode plates 3 are inserted between the negative electrode plates 4. The thickness of the positive electrode sheet 3 is 1.5 times that of the negative electrode sheet 4. In the embodiment, the positive plate 3 is inserted into the negative plate 4 to form a structure of negative plate-positive plate-negative plate; the thickness of the positive plate 3 is set to be 1.5 times of the thickness of the negative plate 4, the thicknesses of the positive plate 3 and the negative plate 4 are not excluded from being the same, and the concentration ratio of reactants in the positive plate 3 and the negative plate 4 in the electrode plates is changed so as to achieve the aim of fully reacting the reactants in the positive plate 3 and the negative plate 4.
Referring to fig. 3, in the embodiment, the positive electrode sheet 3 is connected to the current collecting plate in a line. The negative plate 4 is connected with the current collecting plate in a line. In the embodiment, the arc-shaped structure of the positive plate 3 is tangent to the positive current collecting plate 601, and the positive plate 3 and the positive current collecting plate 601 are connected at the tangent position in a welding mode to form a connecting line 7 so as to realize electric conduction; the arc-shaped structure of the negative electrode plate 4 is tangential to the negative current collecting plate 602, and the negative electrode plate 4 is connected with the negative current collecting plate 602 at the tangential position by welding so as to realize electric conduction.
In an embodiment, the end of the cap 2 near the housing 1 is provided with a vent hole (not shown in the figure). The vent hole (not shown) is used for releasing pressure for the battery in the process of charging and discharging the battery, so as to prevent the battery shell from being damaged or burst due to overlarge pressure caused by gas generated in the process of charging and discharging the battery, and injure a user.
The above-described embodiments are only one of the preferred embodiments of the present invention, and the ordinary changes and substitutions made by those skilled in the art within the scope of the present invention should be included in the scope of the present invention.
Claims (4)
1. The utility model provides a high-efficient nickel-metal hydride battery, includes shell (1), lid (2), arranges the electric core in shell (1) and locates the current collecting plate between terminal surface about electric core and shell (1), the current collecting plate is including being close to the positive current collecting plate that the lid set up and keeping away from the negative current collecting plate of lid one end, its characterized in that: the battery cell is in a lamination shape and comprises at least one lamination, wherein the lamination comprises a positive plate (3), a negative plate (4) and a diaphragm (5) arranged between the positive plate (3) and the negative plate;
The positive plates (3) are m-like, the negative plates (4) are u-shaped, and the negative plates (4) are inserted between the positive plates (3);
The thickness of the negative plate (4) is 1.5 times of that of the positive plate (3);
The positive plate is m-like, the contact position of the positive plate and the positive current collecting plate is arc-shaped, the current is primarily collected, and the current is further collected through the positive current collecting plate, so that the effect of efficiently collecting the current is achieved, and the battery is efficiently charged and discharged; the negative electrode plate is u-shaped, and the contact position of the negative electrode plate and the negative current collecting plate is arc-shaped, so that electrons are preliminarily collected, and further collected through the negative current collecting plate, and the effect of high-efficiency charge and discharge is achieved.
2. The high efficiency nickel-metal hydride battery of claim 1, wherein: the positive plate (3) is connected with the positive current collecting plate in a line.
3. The high efficiency nickel-metal hydride battery of claim 1, wherein: the negative plate (4) is connected with the negative current collecting plate in a line.
4. The high efficiency nickel-metal hydride battery of claim 1, wherein: one end of the cap (2) close to the shell (1) is provided with a vent hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711246494.1A CN108011134B (en) | 2017-11-30 | High-efficiency nickel-hydrogen battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711246494.1A CN108011134B (en) | 2017-11-30 | High-efficiency nickel-hydrogen battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108011134A CN108011134A (en) | 2018-05-08 |
| CN108011134B true CN108011134B (en) | 2024-07-09 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601960A (en) * | 2016-12-30 | 2017-04-26 | 重庆市紫建电子有限公司 | Button battery and manufacturing method therefor |
| CN207611833U (en) * | 2017-11-30 | 2018-07-13 | 东莞市朗泰通实业有限公司 | A kind of efficient Ni-MH battery |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601960A (en) * | 2016-12-30 | 2017-04-26 | 重庆市紫建电子有限公司 | Button battery and manufacturing method therefor |
| CN207611833U (en) * | 2017-11-30 | 2018-07-13 | 东莞市朗泰通实业有限公司 | A kind of efficient Ni-MH battery |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Zhongping Inventor after: Guo Wenqing Inventor after: He Lihui Inventor after: Li Xingsong Inventor before: Xiao Zhongping Inventor before: Guo Wenqing Inventor before: He Lihui Inventor before: Li Xingsong Inventor before: Deng Tong |
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| GR01 | Patent grant |