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Preparation method for storage battery shell

A battery and shell technology, applied in the field of battery shell preparation, can solve the problems of poor battery capacity and power generation performance, low battery shell strength, and small effective volume, and achieve high production efficiency, convenient industrial production, and structural strength high effect

Active Publication Date: 2016-05-11
湖北长海新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, propose a method for preparing a battery case, and solve the technical problems of low strength, poor impact resistance, and low effective volume of the battery case prepared in the prior art, resulting in poor battery capacity and power generation performance.

Method used

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  • Preparation method for storage battery shell

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Experimental program
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Effect test

Embodiment 1

[0026] (1) Mold preparation, clean the inner surface of the male mold and the two halves of the female mold, apply a liquid release agent on it, and place a sealing strip on the sealing groove of the male mold and the half female mold, and the sealing strip forms Closed circular circuit, stand still for 30 minutes and wait for the release agent to form a film; among them, 8 vent holes are set on the male mold, and injection ports are set on at least one half-female mold;

[0027] (2) Lay reinforcing material on the male mold, hoist the two half female molds on the male mold after laying, and assemble the male mold and the two half female molds into a whole through bolts; wherein, the reinforcing material Including the lower polyester surface layer, the lower 0° / 90° biaxial cloth layer, the continuous glass fiber mat layer, the upper 0° / 90° biaxial cloth layer, and the upper polyester surface layer layered sequentially from bottom to top; and , the lower polyester surface layer...

Embodiment 2

[0032] The preparation method of the present embodiment 2 is basically the same as the above-mentioned embodiment 1, and its difference is: a, the mass ratio of vinyl resin, methyl ethyl ketone peroxide curing agent, defoamer in the present embodiment 2 is 100:1:0.5 B, the vacuuming operation of the present embodiment 2 reaches 0.09MPa to the vacuum degree of the mold cavity, and after continuing to run the vacuuming system for 20 minutes, close the vacuuming system; c, the first stage injection pressure of the present embodiment 2 is 0.12MPa, the injection time is 4 minutes, and the injection time of the third stage is 30 seconds.

Embodiment 3

[0034] The preparation method of the present embodiment 3 is basically the same as the above-mentioned embodiment 1, and its difference is: a, the mass ratio of vinyl resin, methyl ethyl ketone peroxide curing agent, defoamer in the present embodiment 3 is 100:1.5:0.8 B, the vacuuming operation of the present embodiment 3 reaches 0.088MPa until the vacuum degree of the cavity in the mold reaches 0.088MPa, and after continuing to run the vacuuming system for 18 minutes, close the vacuuming system; c, the first stage injection pressure of the present embodiment 3 is 0.15MPa, the injection time is 3min, the injection pressure of the second stage is 0.25MPa, and the injection time of the third stage is 20 seconds.

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Abstract

The invention discloses a preparation method for a storage battery shell. The preparation method includes the following steps that (1) dies are prepared, wherein a male die and two semi-female dies are coated with a release agent, standing is carried out to wait for film forming of the release agent, and sealing strips are placed on the male die and the two semi-female dies; (2) a reinforcing material is paved on the male die, and the two semi-female dies and the male die are assembled and fixed into a whole; (3) an assembled die internal cavity is vacuumized, and an injection molding machine is used for injecting resin adhesive liquid into the cavity until the set vacuum degree is achieved, wherein the resin adhesive liquid comprises vinylite, a methyl ethyl ketone peroxide curing agent and a defoaming agent which are evenly mixed; and (4) after the dies are placed under the indoor temperature for at least six hours, demolding is carried out, and then the storage battery shell is obtained. The storage battery shell prepared through the preparation method is high in impact resistance and vibration resistance; in addition, the wall thickness is reduced, and intervals are avoided; and increase of internal capacity is facilitated, and the capacity and the discharging performance of a storage battery are improved.

Description

technical field [0001] The invention relates to the preparation technology of the storage battery case, in particular to a preparation method of the storage battery case. Background technique [0002] At present, the battery casings used in ships and naval vessels in our country are all rubber casings. Due to their low strength and poor impact toughness, they are easy to break, causing acid leakage and affecting the safety of use; Reinforcing ribs, half of the two pole groups are suspended, half of the bottom is supported, and the wall thickness of the shell is more than 20mm, which seriously affects the effective volume of the battery, thereby affecting the capacity and discharge performance of the battery. [0003] In view of this, providing a battery case with high strength, high impact resistance, large battery capacity and high discharge performance has become an urgent problem to be solved at this stage. Contents of the invention [0004] The purpose of the present ...

Claims

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Application Information

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IPC IPC(8): B29C70/36B29K267/00B29K309/08B29K63/00B29L31/34
CPCB29C70/36B29K2063/00B29K2267/00B29K2309/08B29K2313/00B29L2031/3468
Inventor 张凯许曼朱宏程浩金鑫王晓梅
Owner 湖北长海新能源科技有限公司
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