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Pole plate for battery pack

A battery pack and plate technology, applied in battery pack components, electrode carriers/current collectors, circuits, etc., can solve the problem of poor electrical connection of different materials, informatization that cannot meet urban public transportation, and affect the service life of battery packs and other problems, to avoid welding problems, solve cost-effectiveness, safety and durability, and equalize the current flow.

Inactive Publication Date: 2009-03-18
王晏 +2
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, domestic electric vehicles generally use lithium manganese oxide batteries with a large capacity of 50-100A or more that cannot be mass-produced in parallel and in series to form a power battery pack to supply power to the vehicle. In terms of safety, reliability, durability and control system information In terms of degree, it cannot meet the basic needs of urban public transportation, especially its safety factor is lack of effective guarantee compared with lithium iron phosphate high-capacity single battery, but for cylindrical lithium iron phosphate high-capacity single battery pack, the used The material of the plate is often different from that of the battery electrode (anode or cathode), resulting in poor electrical connection between different materials, which affects the service life of the battery pack

Method used

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  • Pole plate for battery pack
  • Pole plate for battery pack
  • Pole plate for battery pack

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Embodiment Construction

[0018] Domestic electric vehicles generally use lithium manganese oxide batteries with a large capacity of 50-100A or more that cannot be mass-produced in parallel and connected in series, which cannot meet the basic needs of urban public transportation in terms of safety, reliability, durability, and the degree of informatization of the control system. When using lithium iron phosphate high-capacity single battery with high safety factor, the electrical connection between the plate and the battery often affects the service life of the battery. Therefore, a new battery pack plate is proposed.

[0019] Such as figure 1 As shown in , the interior of the power battery pack is composed of an anode plate 1, a cathode plate 2 and a tab 3 welded on the plate, and the anode plate (bus bar) 1 and the cathode plate (bus bar) A plurality of batteries 4 are placed between the 2, and the batteries 4 can adopt a cylindrical (or cubic or rectangular) lithium iron phosphate high-capacity sing...

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Abstract

The invention relates to a polar plate for a battery packet, which comprises a copper plate, a copper / aluminum composite plate or a nickel / copper / technological stainless steel composite plate. The invention is characterized in that the polar plate is connected or is welded with a folding polar ear, a bending polar ear or a double-tongue polar ear which is cut. And the polar ears are formed by copper plates, copper / aluminum composite plates or nickel / copper / technological stainless steel composite plates. The polar plate solves the problem of welding different materials, which can achieve duplex spot welding with a battery electrode, and improve the welding quality and conductive level.

Description

(1) Technical field [0001] The application of the present invention relates to a pole plate for a battery pack, in particular to a pole plate for a power battery pack. (2) Background technology [0002] At present, domestic electric vehicles generally use lithium manganese oxide batteries with a large capacity of 50-100A or more that cannot be mass-produced in parallel and in series to form a power battery pack to supply power to the vehicle. In terms of safety, reliability, durability and control system information In terms of degree, it cannot meet the basic needs of urban public transportation, especially its safety factor is lack of effective guarantee compared with lithium iron phosphate high-capacity single battery, but for cylindrical lithium iron phosphate high-capacity single battery pack, the used The material of the pole plate is often different from that of the battery electrode (anode or cathode), resulting in poor electrical connection between different materia...

Claims

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Application Information

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IPC IPC(8): H01M4/64H01M4/66H01M2/26H01M50/543H01M50/566
CPCY02E60/10
Inventor 王晏方平福王为希
Owner 王晏
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