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Ni-H accumulator

A nickel-metal hydride storage battery, nickel-hydrogen technology, applied in the direction of nickel storage battery, alkaline storage battery, airtight storage battery, etc., can solve the problem that the capacity of the unit battery is difficult to increase, restricts the charging and discharging performance of the storage battery, and restricts the development of the storage battery capacity, etc. To achieve the effect of convenient control of the charging current, fast charging, and large output power

Inactive Publication Date: 2010-11-03
XIAN XINZHU FIRE & RESCUE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the consistency is not good, the performance of the battery will be greatly reduced
Therefore, it is difficult to increase the capacity of the unit cell, which restricts the development of the capacity of the battery, and also restricts the performance of the charge and discharge performance of the battery.

Method used

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Examples

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] refer to figure 1 (a) and figure 1 (b), the pole piece is a base tape coated with corresponding active materials on one or both sides. figure 1 In (a), the positive electrode sheet is a base tape coated with a positive active material on one or both sides, the upper end of the base tape is used as the positive electrode tab 2, and the remaining part is used as the coated surface 1, and the height of the positive electrode tab 2 is 10- 20mm, the length is equal to the length of the pole piece, which can meet the large current conduction. Similarly, refer to figure 1 (b), making the negative electrode sheet. Apparently, the active material coating positions of the positive and negative electrodes can be interchanged.

[0021] refer to figure 2 , the positive and negative electrode sheets are stacked, the middle and the bot...

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Abstract

The invention relates to a high-power storage battery, and particularly discloses a nickel-hydrogen elementary battery as well as a storage battery provided with the nickel-hydrogen elementary battery. The nickel-hydrogen elementary battery comprises an outer insulating sleeve, a diaphragm and a pair of positive and negative plates, wherein the positive and the negative plates are basebands, the surfaces of which are coated with active materials corresponding to positive and negative electrodes; the nickel-hydrogen elementary battery is characterized in that the upper end part or the lower end part of the baseband serves as a tab, and the other part serves as a coating surface; the diaphragm, the size of which is matched with that of the coating surface, is arranged between the positive plate and the negative plate; the coating surface is formed on the opposite side of the two tabs and extended from the two tabs and wound to form a cuboid body; and the outer insulating sleeve is woundaround the periphery of the cuboid body.

Description

technical field [0001] The invention relates to a high-power accumulator, in particular to a nickel-metal hydride unit cell and an accumulator. Background technique [0002] Ni-MH battery is a green and environment-friendly power source with excellent comprehensive performance and high safety. However, the current storage battery has small capacity and low output voltage, which cannot generally meet the needs of high-power electrical equipment, which restricts the further application of the storage battery. For example, batteries for electric vehicles require large capacity (120AH), high voltage (60V), high power output, and ultra-high current fast charging (normal charging current 400A). [0003] At present, the interior of the battery is composed of multiple positive and negative pole pieces connected in parallel to form a 1.2V unit battery. Parallel connection requires high consistency of each pole piece, and it is difficult to achieve complete consistency of each set of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/30H01M10/28H01M10/34
CPCY02E60/124Y02E60/10Y02P70/50
Inventor 陆晓东程阿明
Owner XIAN XINZHU FIRE & RESCUE EQUIP
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