Scouring pit grinding tool of high-volume polymer lithium battery
A polymer and lithium battery technology, applied in non-aqueous electrolyte battery, electrolyte battery manufacturing, sustainable manufacturing/processing, etc., can solve the problem that the size cannot be enlarged, the size and space utilization rate is low, and the double-pit four-sided edge sealing mode is inefficient. and other problems to achieve the effect of reducing damage, reducing stretching, and avoiding deformation
Active Publication Date: 2016-12-07
南通鼎鑫电池有限公司
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Problems solved by technology
[0004] In order to overcome the problems existing in the prior art that the size cannot be enlarged, the efficiency of the double-pit four-sided edge sealing mode is low, and the size and space utilization rate is low, the present invention provides a large-capacity polymer lithium electronic battery
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[0030] The present invention will be described in further 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 invention, not to limit the present invention.
[0031] The invention discloses a punching die for a large-capacity polymer lithium battery. The casing of the lithium battery adopts an aluminum-plastic composite film. A punching die is required in the punching process, and the punching die in the aluminum-plastic film forming machine is improved in this embodiment. The shell is made of aluminum-plastic composite film. The punching die is divided into a patrix and a lower die, and the patrix and the lower die are in relative positions; as Figure 8 As shown, the upper die includes a punch 5, an upper die base 1 and a hydraulic cylinder a; the hydraulic cylinder a includes a cylinder 4 and a piston rod 2, and the piston rod 2 is located insi...
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Abstract
The invention provides a scouring pit grinding tool of a high-volume polymer lithium battery. A scouring pit mold is divided into an upper mold and a lower mold; the upper mold and the lower mold are located in corresponding positions; the upper mold includes a convex mold, an upper mold base and a hydraulic cylinder a; the hydraulic cylinder a includes a cylinder body and a piston rod; the piston rod is arranged in the cylinder body; the hydraulic cylinder a is mounted in the middle position of the bottom surface of the upper mold; the convex mold is arranged rightly below the hydraulic cylinder a; the lower mold includes a lower mold base, a hydraulic cylinder b and a cooling device; the upper surface of the lower mold base is a working plane; a scouring pit is formed in middle of the upper surface of the lower mold, is a square, and has the same shape size with the convex mold; a square frame is arranged rightly below the bottom of the scouring pit; and a cooling device is mounted rightly below the scouring pit, and is positioned in the square frame. The scouring pit grinding tool has the following beneficial effects: the depth of the scouring pit is changed according to the requirements of lithium battery shells with different specifications; and aluminum plastic films can be quickly shaped after pit scouring.
Description
technical field [0001] The invention relates to the technical field of pitting abrasive tools for lithium batteries, in particular to a pitting abrasive tool for large-capacity polymer lithium batteries. Background technique [0002] With the further development of the new energy industry, especially the rapid development of the energy storage industry and the electric vehicle industry, higher requirements are placed on large-capacity lithium-ion batteries, such as lighter weight, higher specific energy, and better safety. , longer service life, better high-rate discharge performance, better heat dissipation performance, and convenient assembly, especially put forward higher requirements for the energy density and safety performance of large-capacity lithium-ion batteries. Existing high-capacity lithium-ion batteries that use polymer aluminum-plastic film shells have the following problems: (1) The depth of the aluminum-plastic film is insufficient, generally below 6mm, resu...
Claims
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IPC IPC(8): B29C51/30H01M10/058
CPCB29C51/30H01M10/058Y02E60/10Y02P70/50
Inventor 李中彦丁燕丽卢峰汤留俊张静
Owner 南通鼎鑫电池有限公司