Collector plate and cylindrical lithium battery
A collector plate and circular technology, applied in the field of collector plates and cylindrical lithium batteries, can solve the problems of poor consistency of pole piece penetration and long time for liquid injection, so as to improve product quality, improve consistency, and reduce liquid injection. time consuming effect
Pending Publication Date: 2022-05-17
SHENZHEN BAK POWER BATTERY CO LTD
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Problems solved by technology
[0004] The purpose of the embodiment of the present application is to provide a collector plate, aiming to solve the technical problems of poor penetration consistency of the pole pieces of the cylindrical battery and long time-consuming liquid injection in the prior art
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[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0024] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0025] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and oth...
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The invention is applicable to the technical field of lithium batteries, and provides a collector plate and a cylindrical lithium battery, the collector plate comprises a circular collector plate, the circular collector plate is provided with a central area, the edge of the circular collector plate is provided with at least one notch, the circumference of each concentric circle outside the central area is provided with a liquid guide hole, the liquid guide holes and the notches, and the liquid guide holes are communicated with the notches. And the liquid guide hole and the notch are used for guiding liquid for the battery pole group at the bottom of the circular collector plate. According to the collector plate disclosed by the invention, the liquid guide holes are respectively formed in the circumferences of the concentric circles outside the central area and the at least one notch is formed in the edge of the circular collector plate, so that a liquid injection channel can be formed on any concentric circle pole piece below the collector plate at the first time when a cylindrical lithium battery is injected, and electrolyte permeation is obtained; and the electrolyte permeation consistency of the electrode plate is effectively improved, the electrolyte injection time consumption is reduced, and the product quality is improved.
Description
technical field [0001] The present application relates to the technical field of lithium batteries, and more specifically, to a current collector and a cylindrical lithium battery. Background technique [0002] With the development of economy and society, batteries, especially lithium batteries, are developing at a high speed. Due to its high specific energy, long life, and environmental protection, lithium batteries have attracted more and more attention. Lithium batteries will have broad application prospects in electric vehicle power supplies and energy storage power supplies. [0003] The existing cylindrical battery includes a battery casing, an electrode group arranged in the battery casing, and a current collecting plate arranged at the end of the electrode group. The current collecting plate is provided with a number of liquid guide holes, and through the setting of several liquid guide holes It can speed up the speed and uniformity of the electrolyte penetration in...
Claims
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IPC IPC(8): H01M4/66H01M4/70H01M4/80H01M50/609H01M10/052
CPCH01M4/66H01M4/70H01M4/80H01M10/052H01M50/609H01M50/107H01M4/64Y02E60/10
Inventor 赵俊峰
Owner SHENZHEN BAK POWER BATTERY CO LTD