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Circuit, equipment and method for full detection of battery voltage after hot pressing formation of lithium ion battery

A lithium-ion battery, battery voltage technology, applied in the direction of measuring current/voltage, measuring electricity, measuring electrical variables, etc., can solve the problems of adverse effects of lithium battery performance, prone to leakage testing, slow work efficiency, etc., to save operators. Position and production cost, improve production efficiency, high degree of automation effect

Pending Publication Date: 2019-06-28
GUANGZHOU RONGCHENG LITHIUM BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only has the problem of slow working efficiency, but also is prone to leakage, which makes the low-voltage battery flow to the subsequent process, which will have a negative impact on the performance of the lithium battery, or even be scrapped.

Method used

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  • Circuit, equipment and method for full detection of battery voltage after hot pressing formation of lithium ion battery
  • Circuit, equipment and method for full detection of battery voltage after hot pressing formation of lithium ion battery
  • Circuit, equipment and method for full detection of battery voltage after hot pressing formation of lithium ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, a battery voltage full detection circuit after thermocompression formation of a lithium-ion battery, including a control circuit module, a detection circuit module and a power supply module, see figure 1 .

[0036] Wherein, the control circuit module includes: an inductor and a control relay K0 powered by a DC power supply. The sensor power input terminals (-V and +V) are connected to the DC power supply DC, the two ends of the control coil of the control relay K0 are connected in parallel with the output terminals (OUT and V+) of the sensor, and the normally closed circuit (NC) of the control relay K0 is connected to the DC After the power supply DC, it is connected with the detection circuit module. The sensor is used to sense the timing of terminating the retrieval circuit module, and the voltage output of the sensor changes to control whether the detection circuit module performs detection work.

[0037] The detection circuit module includes: N group...

Embodiment 2

[0042] Embodiment 2, a wiring diagram of a battery voltage full detection circuit after hot pressing of a lithium-ion battery. In this embodiment, the control relay and the detection relay are intermediate relays, and there are two sets of contact outputs. figure 2 One of the wiring methods is given:

[0043] The connection of the control circuit module is as follows: the DC output negative terminal of the switching power supply is connected to the negative terminal (-V) of the sensor and the COM pin of the normally closed circuit of the control circuit relay, and the positive terminal of the DC output of the switching power supply is connected to the positive terminal of the sensor (+ The V) terminal is connected to one end of the control coil of the control circuit relay, and the output terminal of the sensor is connected to the other end of the control coil of the control circuit relay. The two ends of the control coil of the control circuit relay do not distinguish between...

Embodiment 3

[0047] Embodiment 3, a kind of lithium-ion battery thermocompression forming battery voltage full inspection equipment, see Figure 3-8 :

[0048] The battery voltage full inspection equipment includes the battery voltage full inspection circuit and the equipment box 1 after the lithium-ion battery is hot-pressed in embodiment 2, and the intelligent disk surface dial 2, the buzzer 3, the relay 4 and the switching power supply 5 in the circuit are installed. Inside the box, there is an empty slot on the surface of the box, and the smart dial surface dial 2 and the buzzer 3 are fixedly embedded in the box surface through the empty slot from the inside of the box, such as image 3 shown. Among them, the relay 2 includes a control relay and a detection relay, both of which use the same type of intermediate relay.

[0049] Further, the battery voltage full inspection device also includes a number of aviation plugs 6 fixedly embedded in the surface of the box, and the foot points ...

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Abstract

The invention relates to the technical field of battery voltage measurement and provides a circuit for full detection of battery voltage after hot pressing formation of a lithium ion battery. The circuit comprises a control circuit module, a detection circuit module and a power module, wherein the control circuit module comprises an inductor used for sensing the opportunity for terminating the detection circuit module; the detection circuit module comprises N detection units connected in parallel, and N is a positive integer which is not smaller than 2; each detection unit comprises a high-accuracy intelligent panel meter, a detection relay and an indication element. The invention also provides equipment and a method for full detection of battery voltage after hot pressing formation of thelithium ion battery. The equipment comprises the circuit and an equipment box, and the detection circuit module and the control relay in the circuit are arranged in the box. According to the circuitand the equipment, voltage of multiple formed batteries can be detected simultaneously through multiple parallel detection units, so that the detection efficiency is improved, and scrappage caused bythe fact that low-voltage and zero-voltage batteries enter a subsequent procedure is avoided.

Description

technical field [0001] The invention relates to the technical field of battery voltage measurement, in particular to a battery voltage full detection circuit, device and method for a lithium-ion battery after thermocompression formation. Background technique [0002] After battery formation, there will be some low-voltage batteries that are not formed or insufficiently formed due to poor contact, abnormal position of the formation cabinet, or poor formation operation. Such batteries are abnormal batteries. Abnormal batteries cannot be transferred to the future, which will affect the overall performance of the battery and the safety of use. In order to select abnormal batteries, it is necessary to conduct a full voltage test on the batteries after formation. At present, the way to check the voltage of all batteries in the lithium-ion battery industry is to manually use test leads or voltage internal resistance testers to test one by one. This not only has the problem of slo...

Claims

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Application Information

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IPC IPC(8): G01R31/385G01R19/00
Inventor 曾龙胡波陈友洪邓俊峰林黛青
Owner GUANGZHOU RONGCHENG LITHIUM BATTERY