Preparation process of fast-charging solid polymer lithium ion battery

Abstract

The invention discloses a preparation process of a fast-charging solid polymer lithium ion battery, which comprises the following steps: step 1, preparing materials; 2, preparing a positive plate; 3, preparing a negative plate; 4, preparing a solid polymer electrolyte membrane; 5, assembling the lithium ion battery; compared with the prior art, the solid-state lithium ion battery is safe and reliable, through the use of the high-agglomeration graphitized particles, the solid-state lithium ion battery has enough micropores for lithium intercalation during quick charge, lithium ions can be more quickly intercalated into and separated from a negative electrode, the solid-state lithium ion battery has high-rate charge and discharge capability, the charge efficiency is improved, and the charge time is shortened; the solid-state lithium ion battery replaces the existing lithium ion battery filled with electrolyte, so that the safety risks of liquid leakage, easy fire combustion and even explosion are reduced; and the preparation process of the traditional lithium ion battery is simplified, the production cost is reduced, the working efficiency is improved, and factory production is facilitated.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a preparation process for fast-charging solid-state polymer lithium-ion batteries. Background technique [0002] Because lithium-ion batteries have the advantages of high voltage, high specific energy, many cycle times, and long storage time, there are certain requirements for the preparation and use of some lithium-ion batteries in the market; but the existing lithium-ion batteries, Most of them are non-solid-state batteries filled with electrolyte. There are safety risks of leakage, fire and even explosion during use, which has high safety hazards. Therefore, solid-state batteries are widely used, but the existing solid-state batteries are still being prepared and produced The process is cumbersome and complicated, which increases the cost of preparation. At the same time, the charging efficiency of the solid-state battery prepared is low, and the low-efficiency c...

AI Technical Summary

Problems solved by technology

[0002] Because lithium-ion batteries have the advantages of high voltage, high specific energy, many cycle times, and long storage time, there are certain requirements for the preparation and use of some lithium-ion batteries in the market; but the existing lithium-ion batteries, Most of them are non-solid-state batteries filled with electrolyte. There are safety risks of leakage, fire and even explosion during use, which has high safety hazards. Therefore, solid-state batteries are widely used, but the existing solid-state batteries are still being prepared and produced The process is cumbersome and complicated, which increases the cost of preparation. At the same time, the charging efficiency of the solid-state battery prepared is low, and the low-efficiency charging speed is not conducive to meeting the growing demand; therefore, at this stage, a fast-charging solid-state polymer lithium-ion battery has been invented. The preparation process of the battery is very necessary

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