Cylindrical lithium-ion battery forming and capacity-grading equipment

Abstract

The invention discloses cylindrical lithium-ion battery forming and capacity-grading equipment, which comprises a rack, a charge-discharge power box, a battery clamping movement mechanism, a battery tray and a control mechanism, wherein the charge-discharge power box with a variable condition is arranged on the rack; the battery clamping movement mechanism is used for clamping positive and negative electrode tabs of a cylindrical lithium-ion battery; the battery tray is arranged in the battery clamping movement mechanism; the control mechanism is arranged in a personal computer (PC) outside a rack; the charge-discharge power box with the variable condition is electrically connected with the battery clamping movement mechanism; and the charge-discharge power box and the battery clamping movement mechanism are in control connection with the control mechanism respectively. According to the cylindrical lithium-ion battery forming and capacity-grading equipment, two procedures of forming and capacity-grading of the cylindrical lithium-ion battery can be finished; the equipment variety is simplified; and the production efficiency is improved, so that high quality, high efficiency and traceability of the cylindrical lithium-ion battery in the manufacturing process are achieved.

Description

technical field [0001] The invention relates to a cylindrical lithium ion battery composition and capacity equipment. Background technique [0002] In the production process of cylindrical lithium-ion batteries, formation and capacity separation are very important processes. Formation is the use of electric energy to activate the internal activity of the battery and form an SEI film on the negative electrode of the battery. Good-quality formation equipment can ensure that the battery has a relatively high performance. Good charge and discharge performance and cycle life, the capacity is to carry out several full load charge and discharge cycles on the activated battery, test the DC internal resistance, charge and discharge voltage, constant current discharge, constant voltage discharge, constant power discharge characteristics, Grouping is used to select batteries with the same electrical parameters for series and parallel applications to reduce the short board effect after ...

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Problems solved by technology

[0003] In order to overcome the high defect rate of battery quality in the existing manufacturing methods that rely on manual turnover in most of the existing cylindrical lithium-ion battery composition and capacity processes, the body is prone to artificial scratches and deformations, and the composition and capacity data cannot be reliably traced. In order to solve the problems of low efficiency and poor safety, the present invention provides a cylindrical lithium-ion battery composition and capacity equipment that can realize high-quality, high-efficiency, and traceability in the manufacturing process of cylindrical lithium-ion batteries

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