CN110888061B - A water-cooled button battery temperature control test device - Google Patents
A water-cooled button battery temperature control test device Download PDFInfo
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- CN110888061B CN110888061B CN201911309930.4A CN201911309930A CN110888061B CN 110888061 B CN110888061 B CN 110888061B CN 201911309930 A CN201911309930 A CN 201911309930A CN 110888061 B CN110888061 B CN 110888061B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
一种水冷散热的纽扣电池控温测试装置，包括温控器和温控腔室两部分；温控腔室分为结构相同的正、负极温控腔；温控器的散热监测模块监测流经温控腔室的正、负极水冷头的冷却循环水水流的流速及温度状态；温控器的制冷片控制模块连接温控腔的正、负极制冷片，通过变换电流方向控制正、负极制冷片工作为制冷模式或加热模式；制冷片控制模块与温控器的散热监测模块通讯，当散热监测模块监测到循环水的流量或温度异常时，制冷片控制模块停止向正、负极制冷片供电；温控器的感温模块与正、负极温度传感器相连，并与制冷片控制模块通讯，对比测量的温度与设定值是否相同，控制模块启动或停止制冷片工作；本发明体积小、成本低、控温准确稳定。
A button battery temperature control and testing device with water cooling and heat dissipation comprises a temperature controller and a temperature control chamber; the temperature control chamber is divided into positive and negative temperature control chambers with the same structure; a heat dissipation monitoring module of the temperature controller monitors the flow rate and temperature state of the cooling circulating water flowing through the positive and negative water-cooled heads in the temperature control chamber; a refrigeration plate control module of the temperature controller is connected to the positive and negative refrigeration plates of the temperature control chamber, and controls the positive and negative refrigeration plates to work in a cooling mode or a heating mode by changing the direction of the current; the refrigeration plate control module communicates with the heat dissipation monitoring module of the temperature controller, and when the heat dissipation monitoring module detects that the flow rate or temperature of the circulating water is abnormal, the refrigeration plate control module stops supplying power to the positive and negative refrigeration plates; the temperature sensing module of the temperature controller is connected to the positive and negative temperature sensors, and communicates with the refrigeration plate control module, compares whether the measured temperature is the same as the set value, and the control module starts or stops the refrigeration plate; the present invention has the advantages of small size, low cost, and accurate and stable temperature control.
Description
Technical Field
The invention relates to the technical field of battery testing, in particular to a water-cooling button battery temperature control testing device.
Background
In the field of new energy which is rapidly developed, the lithium ion battery is a popular energy storage device from various secondary batteries due to the characteristic of high specific energy, and is widely applied to the aspects of electric vehicles, electric tools and power grid energy storage. Unfortunately, the electrode materials, electrolyte and separator that make up lithium ion batteries generally operate only within a relatively narrow temperature window beyond which severe damage can occur. For example, when the lithium ion battery is operated at a low temperature, serious lithium precipitation occurs in the negative electrode, the generated lithium dendrite may penetrate through the separator to cause internal short circuit, the electrode material may undergo phase change at a high temperature, the electrolyte may volatilize or oxidize, and the separator may fail. However, lithium ion batteries are required to be adaptable to a wide range of temperatures in applications. For example, in an electric vehicle in an extremely cold region, the battery needs to be able to maintain a sufficient amount of electricity at-20 ℃, while in a tropical region, or the battery itself generates heat during operation, the battery is required to maintain normal operation at a temperature of +50℃. Therefore, the method has important practical significance for the temperature characteristic research of the lithium ion battery and the practical application of the lithium ion battery.
In a laboratory, the most commonly used mode for testing the performance of the lithium ion button battery is to test the lithium ion button battery by trial production, so that the process is simple, the cost is low, and the period is short. In the prior art, for the temperature test of button cells, the mode of putting the button cells into a large-scale constant temperature cavity is always adopted, the constant temperature cavity is cooled by a compressor and cold air, the price of the constant temperature cavity is high, the volume is huge, the temperature adjustment is slower, the use requirement is high, the test efficiency is lower, and inconvenience is brought to practical use. Therefore, the temperature test problem of the button cell is compared and studied, the patent number CN105700587A belongs to the constant temperature cavity test type and cannot solve the existing problem through keyword retrieval, the lithium ion temperature control device shown in the patent number CN103487761 is only a temperature sensing cavity of the lithium ion cell and cannot realize real-time temperature control, and contents contained in the patent numbers CN107887672 and CN206180060 are control strategies for heat management of the cell and are not temperature control devices for the button cell.
In the temperature control of a small range, particularly the refrigeration of the small range, the semiconductor refrigeration sheet is a proper technical means, the semiconductor refrigeration sheet is also called a thermoelectric refrigeration sheet and is divided into a cold surface and a hot surface, the temperature difference of about 40 ℃ can be realized on the two surfaces after the power is on, the continuous power on generates an effect similar to heat transfer, the current direction is changed, and the heating or the refrigeration of one surface of the refrigeration sheet can be controlled. For applications of semiconductor refrigeration sheets in related fields, such as CN106486719a, a power battery control system based on semiconductor refrigeration sheets is used, but not for button battery testing. CN203689188U is a refrigerating device for semiconductor devices, but does not need to energize semiconductor materials, and only needs to control the temperature of a single surface of a material to be tested, and cannot be used for testing button cells. The device described in CN106876824 is improved to a certain extent, but the device is complex in electrical test of the battery and not easy to realize, the arranged insulating layer can actually cause temperature measurement distortion of the battery, the device has no heat preservation measures, so that the temperature is difficult to reduce and maintain, and the cooling plate is not subjected to heat dissipation protection, so that the damage is easy to occur, and the whole device is not strong in practicability. Therefore, it is necessary to design a button cell testing device with high efficiency, small volume, wide temperature control range, accurate and stable temperature control, and simple and easy testing.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a water-cooling button battery temperature control testing device which has the characteristics of small volume, low cost, accurate and stable temperature control, wide temperature range, easy electrical test and high working stability, can keep the electrode shell of the button battery at the temperature of-30 ℃ to 60 ℃ or even wider by utilizing water cooling, and can realize larger temperature difference between the positive electrode shell and the negative electrode shell of the button battery.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
The button battery temperature control testing device for water cooling comprises a temperature controller 1 and a temperature control chamber, wherein the temperature control chamber is divided into an anode temperature control chamber 2 and a cathode temperature control chamber 3 which have the same structure;
The main body part of the positive temperature control cavity 2 is provided with a positive water cooling head water inlet/outlet 2-1, a positive water cooling head 2-2, a positive refrigerating piece 2-3 and a positive cold storage block 2-4 from outside to inside in sequence, wherein the cold surface of the positive refrigerating piece 2-3 is bonded with the positive cold storage block 2-4 through heat conduction silicone grease, the hot surface of the positive refrigerating piece 2-3 is bonded with the surface of the positive water cooling head 2-2 through heat conduction silicone grease, and a positive temperature sensor 2-7 and a positive electrical signal test point 2-8 are arranged on the side edge of the positive cold storage block 2-4;
the main body part of the negative electrode temperature control cavity 3 is provided with a negative electrode water cooling head water inlet/outlet 3-1, a negative electrode water cooling head 3-2, a negative electrode refrigerating sheet 3-3 and a negative electrode cold storage block 3-4 from outside to inside in sequence, wherein the cold surface of the negative electrode refrigerating sheet 3-3 is bonded with the negative electrode cold storage block 3-4 through heat conduction silicone grease, the hot surface of the negative electrode refrigerating sheet 3-3 is bonded with the surface of the negative electrode water cooling head 3-2 through heat conduction silicone grease, and a negative electrode temperature sensor 3-7 and a negative electrode electrical signal test point 3-8 are arranged on the side edge of the negative electrode cold storage block 3-4;
The temperature controller 1 comprises a refrigerating sheet control module 1-1, a temperature sensing module 1-2 and a heat radiation monitoring module 1-3, wherein the heat radiation monitoring module 1-3 monitors the flow speed and the temperature state of cooling circulating water flowing through positive and negative water cooling heads 2-2 and 3-2, the refrigerating sheet control module 1-1 is connected with pins of positive and negative refrigerating sheets 2-3 and 3-3 of a temperature control cavity through control wires, the refrigerating sheet control module 1-1 is communicated with the heat radiation monitoring module 1-3, and an acquisition wire of the temperature sensing module 1-2 is connected with pins of positive and negative temperature sensors 2-7 and 3-7 of the temperature control cavity and is communicated with the refrigerating sheet control module 1-1.
The positive electrode cold accumulation blocks 2-4 are made of metal materials with good heat conductivity and electrical conductivity, including but not limited to copper and aluminum materials.
The surface of the positive electrode cold accumulation block 2-4 is provided with a 1mm recess, the surface of the negative electrode cold accumulation block 3-4 is provided with a 1mm projection, and button cells 4 to be tested with various sizes are arranged between the two cold accumulation blocks.
An insulating layer 5 is arranged between the positive electrode cold accumulation block 2-4 and the negative electrode cold accumulation block 3-4.
The outer layer of the main body part of the temperature control chamber is provided with positive and negative heat preservation layers 2-5 and 3-5.
The positive and negative heat preservation layers 2-5,3-5 are provided with positive and negative outer shell layers 2-6,3-6, and the positive and negative outer shell layers 2-6,3-6 are provided with mounting holes for the integral fixed mounting of the device.
The side length of the positive and negative electrode refrigerating sheets 2-3,3-3 is 4 cm, and the thickness is 5mm.
The invention has the advantages that:
the side length of the refrigerating sheet is only in the order of centimeters, the required cavity is very small, and the refrigerating sheet has the capacity of heating and refrigerating at the same time. The battery performance is measured more directly and accurately, the set heat dissipation monitoring function can effectively protect the refrigerating sheet, overheat damage is prevented, the safety and stability of the device are better, and a stable-30 ℃ test environment can be achieved only by means of circulating water.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic cross-sectional view of a temperature controlled chamber of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, a water-cooled button cell temperature control testing device comprises a temperature controller 1 and a temperature control chamber.
Referring to fig. 2, the temperature control chamber is divided into a positive temperature control chamber 2 and a negative temperature control chamber 3 with the same structure.
The main body part of the positive temperature control cavity 2 sequentially comprises a positive water cooling head water inlet/outlet 2-1, a positive water cooling head 2-2, a positive refrigerating sheet 2-3 and a positive cold storage block 2-4 from outside to inside, wherein the cold surface of the positive refrigerating sheet 2-3 is bonded with the positive cold storage block 2-4 through heat conduction silicone grease, the hot surface of the positive refrigerating sheet 2-3 is bonded with the surface of the positive water cooling head 2-2 through heat conduction silicone grease, cooling circulating water flows through the water cooling head water inlet/outlet 2-1 to take away the heat of the water cooling head 2-2, and a positive temperature sensor 2-7 and a positive electrical signal test point 2-8 are arranged on the side edge of the positive cold storage block 2-4.
The structure of the negative electrode temperature control cavity 3 is the same as that of the positive electrode temperature control cavity 2, namely, a main body part comprises a negative electrode water cooling head water inlet/outlet 3-1, a negative electrode water cooling head 3-2, a negative electrode refrigerating sheet 3-3 and a negative electrode cold storage block 3-4 from outside to inside, wherein a cold surface of the negative electrode refrigerating sheet 3-3 is bonded with the negative electrode cold storage block 3-4 through heat conduction silicone grease, a hot surface of the negative electrode refrigerating sheet 3-3 is bonded with the surface of the negative electrode water cooling head 3-2 through heat conduction silicone grease, and a negative electrode temperature sensor 3-7 and a negative electrode electrical signal test point 3-8 are arranged on the side edge of the negative electrode cold storage block 3-4.
The temperature controller 1 comprises a refrigerating sheet control module 1-1, a temperature sensing module 1-2 and a heat radiation monitoring module 1-3, wherein the heat radiation monitoring module 1-3 monitors the flow rate and the temperature state of cooling circulating water flowing through an anode water cooling head 2-2 and a cathode water cooling head 3-2, the refrigerating sheet control module 1-1 is connected with pins of the anode refrigerating sheet 2-3 and the cathode refrigerating sheet 3-3 of a temperature control cavity through control wires, the working of the anode refrigerating sheet 2-3 and the cathode refrigerating sheet 3-3 is controlled to be in a refrigerating mode or a heating mode through changing the current direction, the refrigerating sheet control module 1-1 is communicated with the heat radiation monitoring module 1-3, when the heat radiation monitoring module 1-3 monitors that the flow rate or the temperature of circulating water is abnormal, the refrigerating sheet control module 1-1 stops supplying power to the anode refrigerating sheet 2-3 and the cathode refrigerating sheet 3-3, the acquisition wires of the temperature sensing module 1-2 are connected with pins of the anode temperature sensor 2-7 and the cathode temperature sensor 3-7 of the temperature control cavity, the temperature sensor is communicated with the refrigerating sheet control module 1-3, whether the measured temperature is the same with a set value or not, and the cold sheet control module 1-3 is started or not is started or stopped.
The positive electrode cold accumulation blocks 2-4 are made of metal materials with good heat conductivity and electrical conductivity, including but not limited to copper and aluminum materials. The positive electrode cold storage block 2-4 plays three roles, namely, the temperature of the cold surface of the positive electrode refrigerating sheet 2-3 is uniformly conducted to the shell of the button cell 4 to be tested, so that the temperature distribution is more uniform and the temperature is changed smoothly, the temperature sensor 1-2 mounting port is preset on the positive electrode cold storage block 2-4, the temperature of the shell of the button cell 4 to be tested can be accurately measured by measuring the temperature of the positive electrode cold storage block 2-4 because the temperature of the positive electrode cold storage block 2-4 is consistent with the temperature of the shell of the button cell 4 to be tested, and the positive electrode cold storage block is used as a test electrode of the button cell 4 to be tested, has good electrical contact with the shell of the button cell 4 to be tested in a compacting mode, and can directly hold an electrical signal test wire on the positive electrode cold storage block 2-4.
The surface of the positive electrode cold accumulation block 2-4 is provided with a 1mm concave, the surface of the negative electrode cold accumulation block 3-4 is provided with a 1mm convex, and button cells 4 to be tested with various sizes are arranged between the two cold accumulation blocks.
An insulating layer 5 is arranged between the positive electrode cold accumulation block 2-4 and the negative electrode cold accumulation block 3-4, and the temperature of the positive electrode shell and the temperature of the negative electrode shell can be independently set.
The outer layer of the main body part of the temperature control chamber is provided with positive and negative heat preservation layers 2-5 and 3-5 for reducing heat transfer between the test chamber and the outside.
The positive and negative heat preservation layers 2-5,3-5 are provided with positive and negative outer shell layers 2-6,3-6, and the positive and negative outer shell layers 2-6,3-6 are provided with mounting holes for the integral fixed mounting of the device.
The side length of the positive and negative electrode refrigerating sheets 2-3,3-3 is 4 cm, and the thickness is 5mm.
When the solar cell is used, the positive temperature control cavity 2 and the negative temperature control cavity 3 are opened, the positive electrode of the button cell 4 to be tested is attached to the concave platform of the positive cold storage block 2-4, then the negative temperature control cavity is covered on the positive electrode, the convex platform of the negative cold storage block 3-4 of the negative temperature control cavity is attached to the negative electrode of the cell, the upper fixing screw and the lower fixing screw are screwed, and the sponge foam type heat preservation layer 5 can be pressed at different heights according to the thickness of the cell, so that the installation can be completed.
The temperature controller 1 is opened, the temperature value of the cold accumulation blocks of the positive electrode and the negative electrode is read, the temperature of a required refrigerating sheet is set, circulating water is opened, the proper temperature is set, cooling water flows through the positive electrode water cooling heads 2-2 and the negative electrode water cooling heads 3-2, and after the heat dissipation monitoring module 1-3 is normal, the positive electrode refrigerating sheet 2-3 and the negative electrode refrigerating sheet 3-3 start to work. The practical use proves that the device can realize the low temperature of minus 30 ℃ at the ambient working temperature of 25 ℃. The heat preservation layer exists between the anode and the cathode, so that the temperature difference between the anode and the cathode of the button cell can be realized, and the button cell can be used for respectively researching the different sensitivities of anode materials and cathode materials to the temperature, which cannot be realized by controlling the temperature of a plurality of chambers. After the temperature of the button cell is stabilized, the performance of the button cell at a specific temperature can be measured through the four-electrode cell test lines 2-8, 3-8.
Claims (4)
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| CN201911309930.4A CN110888061B (en) | 2019-12-18 | 2019-12-18 | A water-cooled button battery temperature control test device |
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| CN201911309930.4A CN110888061B (en) | 2019-12-18 | 2019-12-18 | A water-cooled button battery temperature control test device |
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| CN110888061B true CN110888061B (en) | 2025-01-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212060510U (en) * | 2019-12-18 | 2020-12-01 | 西安交通大学 | Button cell temperature control testing arrangement of water-cooling heat dissipation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005235596A (en) * | 2004-02-20 | 2005-09-02 | Hitachi Maxell Ltd | Button-type alkaline battery and method for manufacturing the same |
| US20080292948A1 (en) * | 2007-05-23 | 2008-11-27 | Ajith Kuttannair Kumar | Battery cooling system and methods of cooling |
| CN101345316B (en) * | 2008-08-29 | 2010-06-09 | 清华大学 | A button solid oxide fuel cell reaction device |
| CN105572602A (en) * | 2016-03-17 | 2016-05-11 | 上海新源动力有限公司 | Test platform for fuel cell cooling system |
| CN107655959A (en) * | 2017-10-26 | 2018-02-02 | 浙江大学 | A kind of controllable thermoelectrochemistry battery testing platform of electrode temperature and its method |
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| CN212060510U (en) * | 2019-12-18 | 2020-12-01 | 西安交通大学 | Button cell temperature control testing arrangement of water-cooling heat dissipation |
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