CN113540707B - Automatic liquid discharge device in lithium battery formation process - Google Patents

Automatic liquid discharge device in lithium battery formation process Download PDF

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Publication number
CN113540707B
CN113540707B CN202110779835.1A CN202110779835A CN113540707B CN 113540707 B CN113540707 B CN 113540707B CN 202110779835 A CN202110779835 A CN 202110779835A CN 113540707 B CN113540707 B CN 113540707B
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waste liquid
liquid
storage tank
lithium battery
battery formation
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CN113540707A (en
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李洪波
褚中海
陈斌雄
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Hubei Jingshi Electromechanical Technology Co ltd
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Shenzhen Jingshi Electromechanical Technology Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/691Arrangements or processes for draining liquids from casings; Cleaning battery or cell casings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • H01M10/446Initial charging measures
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Filling, Topping-Up Batteries (AREA)

Abstract

The invention provides an automatic liquid drainage device in a lithium battery formation process, which comprises a liquid receiving disc, a waste liquid storage tank and a waste liquid transfer tank, wherein the waste liquid storage tank and the waste liquid transfer tank are arranged on the liquid receiving disc, the waste liquid storage tank is respectively communicated with the waste liquid transfer tank and a lithium battery formation negative pressure system, the waste liquid storage tank is provided with a first liquid level sensor for detecting the liquid level height in the waste liquid storage tank, and when the waste liquid in the waste liquid transfer tank reaches a set liquid level height, the first liquid level sensor triggers a warning signal to inform an operator of treatment. The automatic liquid discharge device in the lithium battery formation process can realize automatic discharge and continuous production of electrolyte in the lithium battery formation process, and reduce the labor intensity of operators.

Description

Automatic liquid discharge device in lithium battery formation process
Technical Field
The invention relates to the technical field of lithium battery production equipment, in particular to an automatic liquid discharge device used in a lithium battery formation process.
Background
The lithium battery is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution, and the lithium battery becomes mainstream at present along with the development of scientific technology, but along with the development of battery technology, the discharge of electrolyte in the formation process of the battery has the problems of interruption and frequent manual operation, so that the development and development of an automatic liquid discharge device used in the formation process of the lithium battery are the technical problems to be solved urgently at present.
Disclosure of Invention
The invention aims to provide an automatic liquid discharging device in a lithium battery formation process, which can realize automatic discharge of electrolyte in the lithium battery formation process.
In the embodiment of the invention, the invention aims to provide an automatic liquid discharging device in a lithium battery formation process, which can realize automatic discharge of electrolyte in the lithium battery formation process, enables continuous production of the battery formation and reduces the labor intensity of operation work.
The embodiment of the invention provides an automatic liquid drainage device in a lithium battery formation process, which comprises a liquid receiving disc, a waste liquid storage tank and a waste liquid transfer tank, wherein the waste liquid storage tank and the waste liquid transfer tank are arranged on the liquid receiving disc, the waste liquid storage tank is respectively communicated with the waste liquid transfer tank and a lithium battery formation negative pressure system, the waste liquid storage tank is provided with a first liquid level sensor for detecting the liquid level height in the waste liquid storage tank, and when the waste liquid in the waste liquid transfer tank reaches a set liquid level height, the first liquid level sensor triggers a warning signal to inform an operator of treatment.
In the embodiment of the invention, a second liquid level sensor used for sensing the liquid level height in the liquid receiving disc is arranged in the liquid receiving disc, and when the liquid level in the liquid receiving disc reaches the set height, the second liquid level sensor triggers a warning signal to inform an operator of processing.
In the embodiment of the invention, the automatic liquid discharging device in the lithium battery formation process further comprises an alarm device connected with the first liquid level sensor and the second liquid level sensor.
In the embodiment of the invention, a support frame is arranged at the edge of the liquid receiving disc, and the second liquid level sensor is arranged on the support frame and extends into the liquid receiving disc.
In the embodiment of the invention, a first upper communicating joint and a first lower communicating joint are respectively arranged on the waste liquid transfer tank, a second upper communicating joint and a second lower communicating joint are respectively arranged on the waste liquid storage tank, the first upper communicating joint and the second upper communicating joint are connected through a first hose so as to convey gas generated by electrolyte to the waste liquid transfer tank, and the first lower communicating joint and the second lower communicating joint are connected through a second hose so as to keep the electrolyte liquid levels of the waste liquid storage tank and the waste liquid transfer tank consistent.
In the embodiment of the invention, the first upper communication joint, the first lower communication joint, the second upper communication joint and the second lower communication joint are respectively provided with a valve, and the valves can be closed when the transfer tank is moved out, so that the continuous production is not influenced.
In the embodiment of the invention, the automatic liquid discharging device in the lithium battery formation process further comprises a residual liquid cup arranged on the liquid receiving disc, wherein the residual liquid cup is arranged between the waste liquid storage tank and the waste liquid transfer tank and is positioned right below the first lower communication joint and the second lower communication joint, so that a hose can be conveniently stored when the waste liquid transfer tank is moved out, and the environment pollution caused by the slightly stored electrolyte in the hose is avoided.
In the embodiment of the invention, handles are arranged on the top of the waste liquid storage tank and the top of the waste liquid transfer tank, so that the operation is convenient when the liquid tank is cleaned.
In the embodiment of the invention, the height of the waste liquid storage tank is higher than that of the waste liquid transfer tank, and the height of the first liquid level sensor is higher than that of the waste liquid transfer tank and can be adjusted as required.
In the embodiment of the invention, a communicating pipe for communicating the top and the bottom of the waste liquid storage tank is arranged outside the waste liquid storage tank, and the first liquid level sensor is arranged on the communicating pipe.
Compared with the prior art, the automatic liquid drainage device in the lithium battery formation process comprises a liquid receiving disc, a waste liquid storage tank and a waste liquid transfer tank, wherein the waste liquid storage tank and the waste liquid transfer tank are arranged on the liquid receiving disc; the liquid receiving disc is adopted to prevent waste liquid from leaking, a second liquid level sensor is arranged in the liquid receiving disc, and when the waste liquid flows into the large liquid receiving disc when abnormal conditions occur and the liquid level reaches the set warning liquid level, the second liquid level sensor triggers the warning system to notify an operator to process the waste liquid; a residual liquid cup is used for containing residual liquid in a joint and a pipeline when an operator transfers the waste liquid transfer tank, so that the waste liquid is prevented from leaking to influence continuous production; the automatic liquid drainage device can continuously perform battery formation, reduce the labor intensity of operators, prolong the service life of each element of a negative pressure system and improve the production environment.
Drawings
Fig. 1 is a schematic structural diagram of an automatic liquid discharge device in a lithium battery formation process according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
As shown in fig. 1, in the embodiment of the present invention, an automatic liquid discharging device in a lithium battery formation process is provided, which includes a liquid receiving tray 1, a waste liquid storage tank 2 disposed in the liquid receiving tray 1, a waste liquid transfer tank 3, and a residue cup 4.
The waste liquid storage tank 2 is communicated with the lithium battery formation negative pressure system and is used for storing waste liquid generated in the lithium battery formation negative pressure system 5. In the formation process of the lithium battery, the negative pressure system 5 for lithium battery formation may generate some redundant waste electrolyte, and the waste electrolyte may pollute the environment and needs to be discharged. In this embodiment, the waste liquid storage tank 2 is communicated with the lithium battery formation negative pressure system, so that the waste liquid generated by the lithium battery formation negative pressure system 5 can flow into the waste liquid storage tank 2.
Waste liquid storage pot 2 has set up and has been used for detecting first level sensor 21 of liquid level height in the waste liquid storage pot 2, works as when the waste liquid of waste liquid transfer pot 2 reaches and sets for the liquid level height, first level sensor 21 triggers warning signal, notifies operating personnel to handle. Specifically, the outside of the waste liquid storage tank 2 is provided with a communicating pipe 22 for communicating the top and the bottom of the waste liquid storage tank 2, and the first liquid level sensor 21 is arranged on the communicating pipe 22. The communicating tube 22 is made of transparent material so as to observe the liquid level height. It should be noted that the first liquid level sensor 21 is connected to an alarm device (not shown), when the waste liquid in the waste liquid storage tank 2 reaches a set liquid level height, the first liquid level sensor 21 triggers a warning signal, and the alarm device gives an alarm to notify an operator to perform processing. The top of the waste liquid storage tank 2 is also provided with a handle 25 for carrying the waste liquid storage tank 2.
The waste liquid transferring tank 3 is respectively provided with a first upper communicating joint 31 and a first lower communicating joint 32 positioned below the first upper communicating joint 31. And a second upper communication joint 23 and a second lower communication joint 24 positioned below the second upper communication joint 23 are respectively arranged on the waste liquid storage tank 2. The first upper communication connector 31 and the second upper communication connector 23 are connected by a first hose 33 to deliver gas generated from the electrolyte to the waste liquid transfer tank 3. The first lower communication connector 32 is connected to the second lower communication connector 24 by a second hose 34 to maintain the electrolyte levels of the waste fluid reservoir and the waste fluid transfer tank at a consistent level. Preferably, the first upper communication joint 31 and the second upper communication joint 23 have the same height, and the first lower communication joint 32 and the second lower communication joint 24 have the same height.
Further, a valve 35 is respectively disposed on the first upper communication joint 31, the first lower communication joint 32, the second upper communication joint 23 and the second lower communication joint 24 for controlling the connection and disconnection of each communication joint, and when the waste liquid transfer tank 3 is removed, the valve 35 can be closed, which does not affect the continuous production. The top of the waste liquid transferring tank 3 is also provided with a handle 36 for carrying the waste liquid transferring tank 3.
It should be noted that the height of the waste liquid storage tank 2 is higher than that of the waste liquid transfer tank 3, so that the waste liquid stored in the waste liquid storage tank 2 can fill the waste liquid transfer tank 3. The height of the first liquid level sensor 21 is higher than that of the waste liquid transfer tank 3, so that when the waste liquid transfer tank 3 is filled with the waste liquid, the alarm device is triggered to send out a warning signal, and an operator is prompted to transfer the waste liquid in the waste liquid transfer tank 3.
The residual liquid cup 4 is arranged between the waste liquid storage tank 2 and the waste liquid transfer tank 3, is positioned under the first lower communication joint 32 and the second lower communication joint 24, and is used for storing the hose and receiving waste liquid in the joint and the hose when the hose between the waste liquid storage tank 2 and the waste liquid transfer tank 3 is dismounted, so that the environment pollution caused by the slightly-stored electrolyte in the hose is avoided.
The liquid receiving tray 1 is internally provided with a second liquid level sensor 11 for sensing the height of the liquid level in the liquid receiving tray 1, and when the liquid level in the liquid receiving tray 1 reaches the set height, the second liquid level sensor 11 triggers a warning signal to inform an operator of processing. It should be noted that the second liquid level sensor 11 is connected to the alarm device, and is configured to trigger the alarm device to send out a warning signal. Specifically, a support frame 12 is arranged at the edge of the liquid receiving tray 1, and the second liquid level sensor 11 is arranged on the support frame 12 and extends into the liquid receiving tray 1.
The working process of the automatic liquid discharging device in the lithium battery formation process is as follows:
when the waste liquid in the waste liquid transfer tank 3 reaches the set liquid level height, the first liquid level sensor 21 triggers the alarm device to notify an operator of treatment, the operator closes a valve first, then introduces a pipeline and residual waste liquid into the residual liquid cup 4, then moves out of the waste liquid transfer tank 3 for waste liquid treatment, and after the treatment is finished, then connects the emptied waste liquid transfer tank 3 with the waste liquid storage tank 2 again; when abnormal conditions occur, waste liquid flows into the liquid receiving disc 1 and the liquid level reaches a set warning level, the second liquid level sensor 11 triggers the alarm device to inform an operator of treatment.
In summary, the automatic liquid discharge device in the lithium battery formation process comprises a liquid receiving disc, a waste liquid storage tank and a waste liquid transfer tank, wherein the waste liquid storage tank and the waste liquid transfer tank are arranged on the liquid receiving disc, waste liquid is stored through the waste liquid storage tank, waste liquid is transferred through the waste liquid transfer tank, and when the liquid level of the waste liquid in the waste liquid storage tank reaches a set height, an alarm signal is sent to prompt an operator to transfer the waste liquid in the waste liquid transfer tank; the liquid receiving disc is adopted to prevent waste liquid from leaking, a second liquid level sensor is arranged in the liquid receiving disc, and when the waste liquid flows into the large liquid receiving disc when abnormal conditions occur and the liquid level reaches the set warning liquid level, the second liquid level sensor triggers the warning system to notify an operator to process the waste liquid; a residual liquid cup is used for containing residual liquid in a joint and a pipeline when an operator transfers the waste liquid transfer tank, so that the waste liquid is prevented from leaking to influence continuous production; the automatic liquid drainage device can continuously perform battery formation, reduce the labor intensity of operators, prolong the service life of each element of a negative pressure system and improve the production environment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. The automatic liquid drainage device in the lithium battery formation process is characterized by comprising a liquid receiving disc, a waste liquid storage tank and a waste liquid transfer tank, wherein the waste liquid storage tank and the waste liquid transfer tank are arranged on the liquid receiving disc, the waste liquid storage tank is respectively communicated with the waste liquid transfer tank and a lithium battery formation negative pressure system, the waste liquid storage tank is provided with a first liquid level sensor for detecting the liquid level height in the waste liquid storage tank, and when the waste liquid in the waste liquid transfer tank reaches a set liquid level height, the first liquid level sensor triggers a warning signal to notify an operator to process;
the liquid receiving disc is internally provided with a second liquid level sensor for sensing the height of the liquid level in the liquid receiving disc, and when the liquid level in the liquid receiving disc reaches the set height, the second liquid level sensor triggers a warning signal to inform an operator of processing;
the waste liquid transfer tank is provided with a first upper communicating joint and a first lower communicating joint below the first upper communicating joint respectively, the waste liquid storage tank is provided with a second upper communicating joint and a second lower communicating joint below the second upper communicating joint respectively, the first upper communicating joint is connected with the second upper communicating joint through a first hose, and the first lower communicating joint is connected with the second lower communicating joint through a second hose.
2. The automatic drain in lithium battery formation process of claim 1, further comprising an alarm device connected to the first liquid level sensor and the second liquid level sensor.
3. The automatic liquid discharge device in lithium battery formation process as claimed in claim 1, wherein a support frame is provided at the edge of the liquid receiving tray, and the second liquid level sensor is provided on the support frame and extends into the liquid receiving tray.
4. The automatic drain device in lithium battery formation process of claim 1, wherein a valve is disposed on each of the first upper communication connector, the first lower communication connector, the second upper communication connector and the second lower communication connector.
5. The automatic drain in a lithium battery formation process of claim 1, further comprising a discard cup disposed on the drip tray, the discard cup disposed between the waste liquid storage tank and the waste liquid transfer tank and directly below the first lower communication connector and the second lower communication connector.
6. The automatic drain device in a lithium battery formation process of claim 1, wherein a handle is provided on both the top of the waste liquid storage tank and the top of the waste liquid transfer tank.
7. The automatic drain device in lithium battery formation process of claim 1, wherein the waste liquid storage tank is higher than the waste liquid transfer tank, and the first liquid level sensor is higher than the waste liquid transfer tank.
8. The automatic drain device in lithium battery formation process according to claim 1, wherein a communication pipe for communicating the top and bottom of the waste liquid storage tank is provided outside the waste liquid storage tank, and the first liquid level sensor is provided on the communication pipe.
CN202110779835.1A 2021-07-09 2021-07-09 Automatic liquid discharge device in lithium battery formation process Active CN113540707B (en)

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CN114614221A (en) * 2022-03-18 2022-06-10 浙江杭可科技股份有限公司 Automatic liquid drainage system for lithium battery formation and application method thereof
CN117048933B (en) * 2023-10-11 2024-01-05 江苏尚纯自动化技术有限公司 Packaging equipment capable of automatically changing products and automatic product changing method

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Effective date of registration: 20230629

Address after: No. 600, Hui'an Avenue, Cihui Street, Dongxihu District, Wuhan, 430040, Hubei

Patentee after: Hubei Jingshi Electromechanical Technology Co.,Ltd.

Address before: 518000 floor 1-4, building 12, Tangtou Industrial Zone, Tangtou community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province

Patentee before: SHENZHEN JINGSHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd.