Preparation method of electrochemical battery

An electrochemical and battery technology, applied in the field of energy storage, can solve the problems of occupying production costs, time-consuming, and complicated procedures, and achieve the effect of convenient low-cost production, simple and reliable procedures

Active Publication Date: 2016-02-10
GUANGDONG ZHUGUANG NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For organic electrolyte batteries, it is usually necessary to dry the cells and then inject liquid. After the liquid injection, a slow electrolyte infiltratio

Method used

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  • Preparation method of electrochemical battery

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Embodiment 1

[0030] Embodiment 1, different from Comparative Example 1, this embodiment comprises the following steps:

[0031] Cell preparation: Wind the positive electrode sheet, separator, and negative electrode sheet to obtain a bare cell, and then place it in a drying oven with the furnace temperature set at 80°C and preheat with ventilation; when the cell is preheated to 78°C (cell dry When the temperature is required), vacuumize the furnace to 4kpa, and keep the temperature in the furnace at 80°C for drying; when the water content inside the cell is lower than 200ppm, complete the drying;

[0032] Pretreatment: Vacuumize the dried cells to be liquid-filled for 10 hours in an environment of 1000 Pa, and keep the temperature of the cells at 60°C to obtain soaked bare cells;

[0033] Soaking: keep the vacuum, put the bare cell at 60°C in the electrolyte at 25°C, so that the bare cell is sealed by the electrolyte, and then soak until the electrolyte fully infiltrates the diaphragm;

[...

Embodiment 2

[0037] Embodiment 2, different from Embodiment 1, this embodiment includes the following steps:

[0038] Pretreatment: Vacuumize the dried cells to be liquid-filled for 2 hours in an environment of 200 Pa, and keep the temperature of the cells at 60°C to obtain soaked bare cells;

[0039] The rest are the same as in Embodiment 1, and will not be repeated here.

Embodiment 3

[0040] Embodiment 3, different from Embodiment 1, this embodiment includes the following steps:

[0041] Pretreatment: Vacuumize the dried cells to be liquid-filled in an environment of 100 Pa for 1 hour, and keep the temperature of the cells at 60°C to obtain soaked bare cells;

[0042] The rest are the same as in Embodiment 1, and will not be repeated here.

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Abstract

The invention belongs to the field of an electrochemical battery, in particular to a preparation method of an electrochemical battery. The preparation method mainly comprises the four steps of preprocessing, immersing, electrolyte maintaining quantity control and finished cell preparation as follows: firstly, discharging gas constituents in holes of a cell electrode plate by preprocessing to reserve space for electrolyte immersion; secondly, placing a cell in an electrolyte for immersion, and allowing the cell to be fully encircled by the electrolyte and rapidly immersed by the electrolyte; thirdly, controlling the squeezed quantity of the electrolyte through fixed-thickness extrusion so as to acquire the electrolyte quantity actually required by the cell; and finally, preparing to obtain the finished battery. The process is simple and reliable, and industrial production at a low cost is promoted.

Description

technical field [0001] The invention belongs to the field of energy storage, in particular to a preparation method of an electrochemical battery. Background technique [0002] After entering the 21st century, various electronic device products such as mobile phones, notebooks, wearable devices, etc. emerge in an endless stream, which greatly enriches the lives of the majority of users; at the same time, electric vehicles and various energy storage power stations are also rapidly sprouting, developing, and grow. The above high-tech products have a common feature: high-performance, low-cost batteries are required to act as energy storage components. [0003] Existing batteries mainly include primary batteries and secondary batteries; the so-called primary batteries, that is, batteries that cannot be recharged, mainly include carbon-zinc batteries, alkaline batteries, paste-type zinc-manganese batteries, cardboard zinc-manganese batteries, alkaline Zinc-manganese batteries, b...

Claims

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Application Information

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IPC IPC(8): H01M10/058
CPCH01M10/058H01M10/0587Y02E60/10Y02P70/50
Inventor 杨玉洁
Owner GUANGDONG ZHUGUANG NEW ENERGY TECH
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