Battery

A battery and cell technology, which is applied to battery pack parts, circuits, electrical components, etc., can solve the problems of limited battery capacity, poor charge and discharge performance, and large AC internal resistance of cylindrical batteries, so as to improve the capacity of the cell , improve the flow capacity, reduce the effect of internal resistance

Pending Publication Date: 2022-06-28
SHENZHEN BAK POWER BATTERY CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

[0003]Battery in the related technology, take the cylindrical battery as an example, the metal foil current collector on the battery cell is generally connected to the current collector plate and then connected to the shell or pole On the column, due to the large number of components when the battery cell is connected to the external electrical connector, the AC internal resistance of the cylindrical battery is large, which affects the overcurrent capability of the cylindrical battery, which limits the capacity of the battery and poor charge and discharge performance.

Method used

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0029] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rath...

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Abstract

The invention discloses a battery, relates to the technical field of batteries, and aims to solve the problems of capacity and internal resistance of the battery in related technologies. The battery comprises a shell, a battery cell and a collector plate, and the battery cell is arranged in the shell; the current collecting plate is propped against the tab of the battery cell and partially protrudes out of the shell so as to form an electric connecting electrode of the battery. As the collector plate is directly abutted against the battery cell tab, the internal space of the battery along the height direction is fully utilized, and when the height of the battery is fixed, the internal space of the shell can be fully utilized to improve the capacity of the battery cell; according to the utility model, the battery cell partially protrudes out of the shell to form an electric connecting pole of the battery, so that the direct connection between the battery cell and an external electric connecting piece can be realized, the internal resistance of the battery is further reduced, and the overcurrent capability of the battery is improved. The battery is applied to high-rate demand scenes such as electric automobiles and electric airplanes.

Description

technical field [0001] The present application relates to the technical field of batteries, and in particular, to a battery. Background technique [0002] With the development of new energy technology, batteries using new energy materials (such as lithium ions) have been widely used in electric vehicles and power tools due to their high versatility. Lithium-ion batteries generally include square lithium-ion batteries and cylindrical lithium-ion batteries, referred to as square batteries and cylindrical batteries. With the continuous improvement of users' requirements for the capacity and rate of the battery, the available internal space of the battery needs to be further excavated, and the AC internal resistance should be kept as low as possible. [0003] For batteries in the related art, taking cylindrical batteries as an example, the metal foil current collector on the battery cell is generally connected to the current collector plate and then connected to the casing or t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/502H01M50/531
CPCH01M50/502H01M50/531
Inventor 许严樊文光何杰青
Owner SHENZHEN BAK POWER BATTERY CO LTD
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