Battery

A battery and battery soft pack technology, which is applied in the direction of secondary batteries, battery pack components, circuits, etc., can solve the problems of accelerated corrosion of the positive grid plate of the battery, affecting battery discharge performance, and short life of the battery at high temperature, so as to improve the depth Discharge performance, improved heat dissipation performance, and long cycle life

Active Publication Date: 2013-04-24
常承立
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main problem of long-term large-capacity batteries is that the energy storage time is short, generally only 10,000 to 20,000 ampere hours, which cannot meet the current long-term power supply time requirements
In addition, due to the long-term load of the battery and the increase in working temperature, the battery will generate a large amount of heat under high-temperature charge-discharge cycle conditions, and the corrosion rate of the positive grid plate of the battery will be accelerated. Battery Discharge Performance

Method used

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Experimental program
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Effect test

Embodiment 1

[0018] Refer to attached figure 1 :

[0019] The battery is mainly composed of positive pole 1, negative pole 2, positive bus bar 3, negative bus bar 4, fuse 5, multiple battery soft packs 6, cooling plate 7, cooling water pipe 8, battery case 9 and circulating water pump 12, The positive and negative poles 1, 2 protrude from the battery case 9, are arranged side by side on the upper part of the battery case 9, and are respectively connected to the positive and negative bus bars 2, 3 through wires. The positive and negative bus bars 3 and 4 are relatively vertically installed on both sides of the battery case 9, and a plurality of battery soft packs 6 are installed in parallel and parallel between the positive and negative bus bars 3 and 4, and the two ends are respectively connected to the positive and negative bus bars 3 and 4 through wires. Negative busbar 2 and 3 are soldered. The connecting wires are provided with fuses 5 respectively, and the fusing current of the fuse...

Embodiment 2

[0023] The positive and negative busbars 3 and 4 of the storage battery are made of silver-copper alloy, wherein the silver content is 20% and the copper content is 80%.

[0024] The battery soft pack 6 used is a colloidal maintenance-free lead-acid battery. It is composed of positive grid, negative grid, electrolyte and outer soft bag. The positive and negative electrode grids are respectively coated with lead paste, and the solid raw materials of the positive electrode lead paste are composed of the following weight units: 100kg of lead powder with a PbO content of 76%, 200g of graphite, 120g of polyester fiber, and 300g of lithium. Sodium 60g, Potassium 20g, Silver 10g; The solid raw material of negative electrode lead paste is made up of the following weight units: lead powder 100kg, polyester fiber 60g, humic acid 300g, barium sulfate 600g, acetylene black 200g, stearic acid 150g . The electrolyte is dilute sulfuric acid with a density of 1.15-1.25g / ml, and 5% lithium e...

Embodiment 3

[0026] The solid raw material of the positive lead paste of the battery soft pack 6 of this accumulator is made up of the material of following weight unit: the content of PbO is 80% lead powder 100kg, graphite 250g, polyester fiber 100g, lithium 250g, sodium 50g, potassium 25g , silver 5g; The solid raw material of negative pole lead paste is made up of the material of following weight unit: lead powder 100kg, polyester fiber 70g, humic acid 250g, barium sulfate 650g, acetylene black 150g, stearic acid 100g. The electrolyte is dilute sulfuric acid with a density of 1.15-1.25g / ml, and 5% lithium element is added to it. The grid alloy is a Pb-Ca-Ag alloy, in which the Ca content is 5%, the Ag content is 0.1%, and the rest is Pb. All the other are with embodiment 1.

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Abstract

The invention in particular relates to a lithium battery, belonging to the manufacturing field of lead-bearing lithium storage batteries. The lithium battery is mainly applied to underwater power of submarines and large energy storage power stations in national defence equipment. The lithium battery is characterized in that the two ends of a plurality of soft battery packs (6) are respectively connected in parallel by leads and are installed between a positive busbar (2) and a negative busbar (3); protectors (5) are arranged on the leads; cooling plates(7) are arranged between the soft battery packs (6) at intervals; and the soft battery packs (6) are soft lithium-ion battery packs or soft colloidal maintenance-free lead-acid storage battery packs. The lithium battery has the following beneficial effects: the defect that the single scrap soft pack of the traditional soft pack storage batteries affects the application of the whole storage batteries is effectively overcome and the problem of heat dissipation when a plurality of groups of soft battery packs are used in parallel is effectively solved, the capacity and deep discharge performance of the storage batteries are substantially improved, and 0,01-1 million ampere-hour long-acting large-capacity storage batteries can be prepared according to the requirements.

Description

technical field [0001] A storage battery belongs to the field of lead-acid storage battery manufacturing, and in particular relates to a long-acting large-capacity lead-lithium battery. It is mainly used in submarine underwater power and large energy storage power stations in national defense equipment. Background technique [0002] Batteries are also called secondary batteries. Currently, the most widely used power batteries are mainly lead-acid batteries, lithium-ion batteries, and iron-lithium batteries. Lead-acid batteries have the advantages of low price, but at the same time, they have disadvantages such as large and bulky, short service life, and large pollution; lithium-ion batteries have long service life, low pollution, and small size, but their biggest disadvantage is that they are expensive and difficult to be used as large power plants. Energy is promoted and applied. The long-term large-capacity battery is the main equipment to provide long-term electric ener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/20H01M10/50H01M10/613H01M10/6555H01M10/6557
CPCY02E60/12Y02E60/10
Inventor 常承立张彪常易宸
Owner 常承立
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