Ultra-thin thermal battery pole piece preparation device
A preparation device and thermal battery technology, which is applied in electrode manufacturing, electrode rolling/calendering, primary battery electrodes, etc., can solve the problems that affect the qualification rate of ultra-thin thermal battery pole piece preparation, pole piece damage and cracking, and weight difference, etc. , to achieve the effects of improving the qualified rate of preparation, delaying the instantaneous release, and reducing uneven thickness
Active Publication Date: 2017-10-27
SHANGHAI INST OF SPACE POWER SOURCES
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- Description
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- Application Information
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Problems solved by technology
The four powders have different powder ratios and different weights according to the discharge performance requirements. The thickness of the pole piece after pressing is 0.46~0.54mm. The ultra-thin pole piece is easy to cause damage and cracking inside the pole piece during the pressing and demoulding process. , affecting the qualification rate of ultra-thin thermal battery pole piece preparation
Method used
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[0019] The following will combine figure 1 ~ Fig. 4(c) further describes in detail the preparation device for ultra-thin thermal battery pole piece of the present invention.
[0020] The ultra-thin thermal battery pole piece preparation device of the present invention includes a pressing module and a demoulding module. Now, a specific embodiment is used to describe the pressing module and the demoulding module of the ultra-thin thermal battery pole piece preparation device of the present invention.
[0021] 1) Compression module
[0022] The four powder materials (heating powder, positive electrode powder, separator powder, and negative electrode powder) of the thermal battery pole piece need to be pressed once before they can be used. The preparation process of ultra-thin thermal battery pole pieces has extremely high requirements for pressing. It is necessary to precisely press ultra-thin thermal battery pole pieces to reduce damage to the pole pieces during the pressing pr...
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Abstract
The invention discloses a preparation device for an ultra-thin thermal battery pole piece. The preparation device is characterized in that a pressing module comprises an upper pressing pad, an upper pressing head, a lower pressing pad, a lower pressing head, an upper guide rail, a lower guide rail, a guide rail base and a pneumatic stabilizing device; the upper pressing pad is arranged on an upper pressing plate of a pressing machine, and the upper pressing head is embedded into the upper pressing pad; the lower pressing pad is arranged on a lower pressing plate of the pressing machine, and the lower pressing head is embedded into the lower pressing pad; the upper guide rail is arranged on the upper pressing plate of the pressing machine and surrounds the upper pressing head; the guide rail base is arranged on the lower pressing plate of the pressing machine, and the lower guide rail is arranged on the guide rail base and surrounds the lower pressing head; the pneumatic stabilizing device is arranged on the outer side of the guide rail base and used for fixing the position of a mold part; a demoulding module comprises a gland, a nut, a pull rod and a pressing head, the gland is fixedly connected onto an upper cylinder piston of a demoulding machine through the nut, the nut is provided with an inner cavity, one end of the pull rod is fixedly connected with the pressing head, and the other end of the pull rod is arranged in the inner cavity of the nut and movably connected with the nut. According to the preparation device for the ultra-thin thermal battery pole piece, accurate pressing and nondestructive demoulding are realized, and the qualified rate of product preparation is increased.
Description
technical field [0001] The invention relates to the field of automatic instruments and devices, in particular to a preparation device for ultra-thin thermal battery pole pieces. Background technique [0002] The thermal battery is used as a one-time reserve battery. When it is not activated, the electrolyte is a non-conductive solid, which can be stored for a long time without performance degradation; power transmission. These advantages make thermal batteries widely used in weapon systems and space survey systems. Thermal batteries also have applications in other fields, such as electric vehicles, aircraft emergency systems, and geothermal drilling. [0003] As the core component of a thermal battery, the pole piece has an electrochemical system including a negative electrode, a positive electrode, and an electrolyte separator. The negative electrode material can be lithium aluminum alloy, lithium silicon alloy, lithium boron alloy or LAN (metal lithium fixed in iron pow...
Claims
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IPC IPC(8): H01M4/04H01M4/08
CPCH01M4/0435H01M4/08
Inventor 刘晓飞胡冉蒋立汤胜越云博
Owner SHANGHAI INST OF SPACE POWER SOURCES