CN205376642U - Low internal resistance nickel -hydrogen battery - Google Patents
Low internal resistance nickel -hydrogen battery Download PDFInfo
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- CN205376642U CN205376642U CN201521125143.1U CN201521125143U CN205376642U CN 205376642 U CN205376642 U CN 205376642U CN 201521125143 U CN201521125143 U CN 201521125143U CN 205376642 U CN205376642 U CN 205376642U
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
本实用新型公开了一种低内阻镍氢电池，包括电池盖、电池钢壳和由正极片、隔膜、负极片卷绕为一体的电池极组，所述负极片朝向电池钢壳底部一端的宽度超出隔膜宽度0.2-2mm，且所述负极片朝向电池钢壳底部一端还设置有一段不上粉空白区域，所述不上粉空白区域的宽度为0.5-2mm，所述负极片的不上粉空白区域在卷绕后紧贴电池钢壳底部。本实用新型在现有技术上进行改良，使得负极片的不上粉区域与电池钢壳底部能够有效解除，其增加了负极集流效果，降低电池内阻，提高了电池大电流放电能力。
The utility model discloses a nickel-metal hydride battery with low internal resistance, which comprises a battery cover, a battery steel shell and a battery pole group wound by a positive electrode piece, a separator, and a negative electrode piece. The width exceeds the separator width by 0.2-2mm, and the end of the negative electrode sheet facing the bottom of the battery steel case is also provided with a section of non-powder blank area. The width of the non-powder blank area is 0.5-2mm. The powder blank area is close to the bottom of the battery steel case after winding. The utility model is improved on the prior art, so that the non-powdered area of the negative plate and the bottom of the steel shell of the battery can be effectively released, which increases the current collection effect of the negative electrode, reduces the internal resistance of the battery, and improves the high-current discharge capacity of the battery.
Description
技术领域 technical field
本实用新型涉及镍氢电池，尤其涉及一种低内阻镍氢电池。 The utility model relates to a nickel-hydrogen battery, in particular to a nickel-hydrogen battery with low internal resistance.
背景技术 Background technique
绿色环保电池--镍氢电池从20世纪90年代开始投放市场以来，经历了长期的市场考验，已经逐步走向成熟期。另外，我国镍氢矿产资源丰富，跟锂电相比，具有更高的安全性(不易爆炸)，为此，镍氢电池是目前在HEV(混合动力)汽车领域中应用最为成熟的二次电池。随着国内外市场需求的不断扩大，新型绿色环保型镍氢动力电池正朝着高容量、小型化、高功率方向发展。镍氢动力电池产业将成为本世纪能源领域的重大产业之一。镍氢动力电池产业的发展将带动城市无污染电动汽车等高新技术产业的发展。 Since the green environmental protection battery-Ni-MH battery was put on the market in the 1990s, it has experienced a long-term market test and has gradually matured. In addition, my country is rich in nickel-hydrogen mineral resources, and compared with lithium batteries, it has higher safety (not easy to explode). Therefore, nickel-hydrogen batteries are currently the most mature secondary batteries used in the field of HEV (hybrid electric) vehicles. With the continuous expansion of domestic and foreign market demand, the new green and environment-friendly Ni-MH power battery is developing in the direction of high capacity, miniaturization and high power. The nickel-metal hydride power battery industry will become one of the major industries in the energy field in this century. The development of the nickel-metal hydride power battery industry will drive the development of high-tech industries such as urban pollution-free electric vehicles.
目前，各生产厂家的动力电池在结构上虽然有差异，但大都采用正、负极通过极耳将电流导出的结构，无论镍氢电池、锂离子电池或其它电池要想提高导电性能，必须把内阻做的越小越好，但是经过多年的研制，其效果总是不明显，因此，在传统的电池结构上几乎无法实现，尤其是镍氢电池。镍氢电池只有在原材料、成本、比功率、内阻等方面进一步改善，才能增强在HEV方面的竞争力和持久力。 At present, although there are differences in the structure of the power batteries of various manufacturers, most of them adopt the structure in which the positive and negative electrodes lead the current through the tabs. The smaller the resistance, the better, but after years of research and development, the effect is always not obvious, so it is almost impossible to achieve in the traditional battery structure, especially the nickel metal hydride battery. Only by further improving the raw materials, cost, specific power, and internal resistance of Ni-MH batteries can the competitiveness and endurance of HEVs be enhanced.
为了使电池内阻大幅度降低，确保电池极组在瞬间能够承受30倍率(或更高)的电流通过，经过多年的研究和试验得出的结论是：只有改变电池结构，才是制造高性能动力型电池的关键。 In order to greatly reduce the internal resistance of the battery and ensure that the battery pole group can withstand a current of 30 times (or higher) in an instant, after years of research and testing, it is concluded that only by changing the battery structure can the high performance be manufactured. The key to power batteries.
实用新型内容 Utility model content
本实用新型要解决的技术问题是克服现有技术的不足，提供一种低内阻镍氢电池。 The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a nickel-hydrogen battery with low internal resistance.
为解决上述技术问题，本实用新型提出的技术方案为： In order to solve the problems of the technologies described above, the technical solution proposed by the utility model is:
一种低内阻镍氢电池，包括电池盖、电池钢壳和由正极片、隔膜、负极片卷绕为一体的电池极组，所述负极片朝向电池钢壳底部一端的宽度超出隔膜宽度0.2-2mm，且所述负极片朝向电池钢壳底部一端还设置有一段不上粉空白区域，所述不上粉空白区域的宽度为0.5-2mm，所述负极片的不上粉空白区域在卷绕后紧贴电池钢壳底部。 A low internal resistance nickel-metal hydride battery, comprising a battery cover, a battery steel case, and a battery electrode group wound by a positive electrode sheet, a diaphragm, and a negative electrode sheet, the width of the negative electrode sheet facing the bottom of the battery steel case exceeds the width of the diaphragm by 0.2 -2mm, and the end of the negative electrode sheet facing the bottom of the battery steel case is also provided with a section of blank area without powder coating, the width of the blank area without powder coating is 0.5-2mm, and the blank area without powder coating of the negative electrode sheet is on the roll After winding, it is close to the bottom of the battery steel case.
进一步地，所述电池极组和所述电池盖之间设置有中垫片。 Further, a middle gasket is provided between the battery electrode group and the battery cover.
进一步地，所述电池盖下方设置有排气孔。 Further, a vent hole is provided under the battery cover.
进一步地，所述正极片采用的是高密度泡沫镍正极片。 Further, the positive electrode sheet is a high-density nickel foam positive electrode sheet.
进一步地，所述负极片采用的是湿法刮粉负极片。 Further, the negative electrode sheet is a wet scraped powder negative electrode sheet.
与现有技术相比，本实用新型的优点在于： Compared with the prior art, the utility model has the advantages of:
本实用新型提供了低内阻镍氢电池，包括电池盖、电池钢壳和由正极片、隔膜、负极片卷绕为一体的电池极组，负极片朝向电池钢壳底部一端的宽度超出隔膜宽度0.2-2mm，且负极片朝向电池钢壳底部一端还设置有一段不上粉空白区域，不上粉空白区域的宽度为0.5-2mm，负极片的不上粉空白区域在卷绕后紧贴电池钢壳底部，通过上述设置，本实用新型在现有技术上进行改良，使得负极片的不上粉区域与电池钢壳底部能够有效解除，其增加了负极集流效果，降低电池内阻，提高了电池大电流放电能力。 The utility model provides a nickel-metal hydride battery with low internal resistance, which includes a battery cover, a battery steel shell and a battery electrode group wound by a positive electrode piece, a diaphragm, and a negative electrode piece. The width of the negative electrode piece facing the bottom of the battery steel shell exceeds the width of the diaphragm 0.2-2mm, and there is a non-powder blank area at the end of the negative electrode facing the bottom of the battery steel case. The width of the non-powder blank area is 0.5-2mm, and the non-powder blank area of the negative electrode is close to the battery after winding The bottom of the steel shell, through the above-mentioned settings, the utility model is improved on the prior art, so that the non-powdered area of the negative electrode sheet can be effectively released from the bottom of the steel shell of the battery, which increases the current collection effect of the negative electrode, reduces the internal resistance of the battery, and improves The high current discharge capacity of the battery is improved.
附图说明 Description of drawings
图1是本实用新型的结构示意图。 Fig. 1 is a structural representation of the utility model.
图2是本实用新型的负极片的结构示意图。 Fig. 2 is a structural schematic diagram of the negative electrode sheet of the present invention.
具体实施方式 detailed description
以下结合说明书附图和具体优选的实施例对本实用新型作进一步描述，但并不因此而限制本实用新型的保护范围。 The utility model will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the utility model is not limited thereby.
结合图1所示的一种低内阻镍氢电池，包括电池盖1、电池钢壳2和由正极片3、隔膜4、负极片5卷绕为一体的电池极组，负极片5朝向电池钢壳2底部一端的宽度超出隔膜4宽度0.2-2mm，且负极片5朝向电池钢壳2底部一端还设置有一段不上粉空白区域6，不上粉空白区域6的宽度为0.5-2mm，负极片5的不上粉空白区域6在卷绕后紧贴电池钢壳2底部。 Combined with a low internal resistance nickel metal hydride battery as shown in Figure 1, it includes a battery cover 1, a battery steel case 2, and a battery pole group wound by a positive electrode sheet 3, a separator 4, and a negative electrode sheet 5, and the negative electrode sheet 5 faces the battery. The width of the bottom end of the steel case 2 exceeds the width of the separator 4 by 0.2-2mm, and the negative electrode plate 5 facing the bottom end of the battery steel case 2 is also provided with a non-powdered blank area 6, and the width of the non-powdered blank area 6 is 0.5-2mm. The non-powder blank area 6 of the negative electrode sheet 5 is close to the bottom of the battery steel case 2 after winding.
本实施例中，电池极组和电池盖1之间设置有中垫片7。 In this embodiment, a middle spacer 7 is arranged between the battery electrode group and the battery cover 1 .
本实施例中，电池盖1下方设置有排气孔8。 In this embodiment, an exhaust hole 8 is provided under the battery cover 1 .
本实施例中，正极片3采用的是高密度泡沫镍正极片，负极片5采用的是负极片采用的是湿法刮粉负极片。 In this embodiment, the positive electrode sheet 3 is a high-density nickel foam positive electrode sheet, and the negative electrode sheet 5 is a wet scraped powder negative electrode sheet.
以50AA1300型号电池制作本实施例的低内阻镍氢电池为例： Take the 50AA1300 model battery to make the low internal resistance Ni-MH battery of this embodiment as an example:
负极片5尺寸：112mm*39.5mm*0.28mm Negative plate 5 size: 112mm*39.5mm*0.28mm
负极片5上粉尺寸：112mm*38.5mm*0.30mm Dimensions of the powder on the negative plate 5: 112mm*38.5mm*0.30mm
其中长度方向的112*1mm的基体不上粉为负极片5的不上粉空白区域6。 Among them, the 112*1mm matrix in the length direction without powder coating is the blank area 6 without powder coating of the negative electrode sheet 5 .
负极片5基体采用铜网，在负极片5上粉的时候，预留1mm宽度不上粉，经过上粉、碾压，制作成负极片5，搭配合适的正极片3、隔膜4及一些辅佐材料，制作成AA1300型号电池。其中卷绕的时候，负极片5超出隔膜4一毫米。 The substrate of the negative electrode sheet 5 is made of copper mesh. When the negative electrode sheet 5 is powdered, a width of 1mm is reserved without powdering. After powdering and rolling, the negative electrode sheet 5 is made into a suitable positive electrode sheet 3, diaphragm 4 and some auxiliary materials. materials, made into AA1300 model batteries. When winding, the negative electrode sheet 5 exceeds the separator 4 by one millimeter.
经试验测试可得，传统低内阻镍氢电池负极工艺与本实施例中的负极工艺测试结果如下： It can be obtained through experiments and tests that the test results of the traditional low internal resistance Ni-MH battery negative electrode process and the negative electrode process in this embodiment are as follows:
从以上对比测试结果看，使用本实施例的电池，负极集流效果好，内阻低，放电平台高，循环寿命好。 From the above comparative test results, it can be seen that using the battery of this embodiment, the negative electrode current collection effect is good, the internal resistance is low, the discharge platform is high, and the cycle life is good.
上述只是本实用新型的较佳实施例，并非对本实用新型作任何形式上的限制。虽然本实用新型已以较佳实施例揭露如上，然而并非用以限定本实用新型。因此，凡是未脱离本实用新型技术方案的内容，依据本实用新型技术实质对以上实施例所做的任何简单修改、等同变化及修饰，均应落在本实用新型技术方案保护的范围内。 The above are only preferred embodiments of the utility model, and do not limit the utility model in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical proposal of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521125143.1U CN205376642U (en) | 2015-12-30 | 2015-12-30 | Low internal resistance nickel -hydrogen battery |
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| CN201521125143.1U CN205376642U (en) | 2015-12-30 | 2015-12-30 | Low internal resistance nickel -hydrogen battery |
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| CN205376642U true CN205376642U (en) | 2016-07-06 |
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| CN201521125143.1U Expired - Lifetime CN205376642U (en) | 2015-12-30 | 2015-12-30 | Low internal resistance nickel -hydrogen battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326772A (en) * | 2018-08-17 | 2019-02-12 | 深圳市力可兴电池有限公司 | Negative electrode tab, the production method of negative electrode tab and nickel-metal hydride battery |
-
2015
- 2015-12-30 CN CN201521125143.1U patent/CN205376642U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326772A (en) * | 2018-08-17 | 2019-02-12 | 深圳市力可兴电池有限公司 | Negative electrode tab, the production method of negative electrode tab and nickel-metal hydride battery |
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| GR01 | Patent grant | ||
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Granted publication date: 20160706 |