CN205861590U - Electrodes of lithium-ion batteries thermal conductivity consistency detection device - Google Patents

Electrodes of lithium-ion batteries thermal conductivity consistency detection device Download PDF

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Publication number
CN205861590U
CN205861590U CN201620752159.3U CN201620752159U CN205861590U CN 205861590 U CN205861590 U CN 205861590U CN 201620752159 U CN201620752159 U CN 201620752159U CN 205861590 U CN205861590 U CN 205861590U
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CN
China
Prior art keywords
heating column
heating
temperature
lithium
electrodes
Prior art date
Application number
CN201620752159.3U
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Chinese (zh)
Inventor
方兰兰
王世强
张卫林
熊金峰
张海明
郭盛昌
刘增洋
Original Assignee
金龙联合汽车工业(苏州)有限公司
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Priority to CN201620752159.3U priority Critical patent/CN205861590U/en
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Publication of CN205861590U publication Critical patent/CN205861590U/en

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Abstract

The utility model discloses electrodes of lithium-ion batteries thermal conductivity consistency detection device, including testing base, test upper cover and temperature-detecting device, described testing base is provided with several the first heating columns, isolated by the first felt pad between several first heating columns described and be respectively equipped with heater bottom them, described heater is connected to heating controller, cover in described test and be provided with second heating column corresponding with described first heating column, isolated by the second felt pad between several second heating columns, described first heating column, it is equipped with temperature sensor on second heating column, described temperature sensor is connected with described temperature-detecting device signal, during test, pole piece is placed between testing base and test upper cover, temperature-detecting device detects the second heating column ramp-up time.The electrodes of lithium-ion batteries thermal conductivity consistency detection device that this utility model provides, can detect electrodes of lithium-ion batteries thermal conductivity the most uniform, detects defective pole piece, improves battery life.

Description

Electrodes of lithium-ion batteries thermal conductivity consistency detection device
Technical field
This utility model relates to technical field of lithium ion, consistent particularly to a kind of electrodes of lithium-ion batteries thermal conductivity Property detection device.
Background technology
The advantages such as the working voltage platform that lithium ion battery has due to himself is high, energy density is big, self-discharge rate is little, The product needing lightweight and the storage of long-time warehouse shelf is widely used, such as mobile phone, notebook computer, Electric automobile etc..The course of processing of lithium ion battery has 100 multiple working procedures, and leading portion is exactly the making of pole piece.Actual production process In, due to the difference between pole piece and the imperfection of detection means, battery can in use there will be hot-spot local mistake The situations such as charge and discharge, have influence on safety and the energy-storage property of battery system.The concordance of electrode slice is that battery performance is conforming Basis, battery consistency is again the premise that electrokinetic cell combo uses.The most perfect battery pole piece detection and compliance evaluation The exploitation of method just has great importance.
The pole piece detection of prior art mainly has vision-based detection, is estimated by artificial method, or enters with vision instrument Row detection, as patent application 201510082341.2 just uses CCD image visual transducer to detect.The master of vision-based detection Project to be detected is holiday, breakage, folding line etc..There is the detection of coating homogeneity, measure the coating thickness of slurry.Resistivity is surveyed Examination, patent application 201310698102.0 discloses a kind of lug resistance to each test point of testing to evaluate conforming side Method.Also there is the method testing each selected point pole piece with active material bonding force.
Although testing increasingly more complete, but prior art does not accounts for the safety of lithium battery with electrical property and hot property Being closely related, thermal conductivity will directly affect internal temperature of battery distribution, and the inconsistent meeting of Temperature Distribution causes cell degradation not Unanimously.
Utility model content
This utility model purpose is to provide a kind of electrodes of lithium-ion batteries thermal conductivity consistency detection device, its structure letter Single, the concordance of electrodes of lithium-ion batteries thermal conductivity can be detected.
Based on the problems referred to above, the technical scheme that this utility model provides is:
Electrodes of lithium-ion batteries thermal conductivity consistency detection device, including testing base, test upper cover and temperature detection dress Putting, described testing base is provided with several the first heating columns, by the first felt pad between several first heating columns described Isolating and be respectively equipped with heater bottom them, described heater is connected to heating controller, described test covers and sets There is second heating column corresponding with described first heating column, isolated by the second felt pad between several second heating columns, institute Stating and be equipped with temperature sensor on the first heating column, the second heating column, described temperature sensor is believed with described temperature-detecting device Number connect, during test, pole piece is placed in testing base and test upper cover between, temperature-detecting device detects the second heating column temperature Rise time.
In some embodiments wherein, described first heating column, the second heating column are cylinder.
In some embodiments wherein, the upper surface of described first heating column and the upper surface of the first felt pad are positioned at On same plane, the lower surface of described second heating column and the lower surface of the second felt pad are in the same plane.
In some embodiments wherein, described temperature-detecting device includes that single-chip microcomputer electrically connects with described single-chip microcomputer Display screen, described single-chip microcomputer includes temperature collect module, timing module, the place that compared by ramp-up time with Preset Time Reason module and the display module being connected with described processing module, described display module is connected with described display screen with display process Result.
Compared with prior art, the utility model has the advantages that:
Use the technical solution of the utility model, the uniformity of electrodes of lithium-ion batteries thermal conductivity can be detected, detect pole piece Defect, improves the life-span of battery.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, required in embodiment being described below The accompanying drawing used is briefly described, and the accompanying drawing in describing below is only embodiments more of the present utility model, for ability From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings Figure.
Fig. 1 is the structural representation of this utility model electrodes of lithium-ion batteries thermal conductivity consistency detection device;
Wherein:
1, testing base;
2, test upper cover;
3, the first heating column;
4, heater;
5, heating controller;
6, the second heating column;
7, temperature sensor;
8, temperature-detecting device;
9, the first felt pad;
10, the second felt pad.
Detailed description of the invention
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiments are for illustrating This utility model and be not limited to limit scope of the present utility model.The implementation condition used in embodiment can be according to concrete producer Condition do further adjustment, not marked implementation condition is usually the condition in normal experiment.
See Fig. 1, for the structural representation of this utility model embodiment, it is provided that a kind of electrodes of lithium-ion batteries thermal conductivity one Cause property detection device, including testing base 1, test upper cover 2 and temperature-detecting device 8, testing base 1 is provided with several the One heating column 3, is isolated by the first felt pad 9 between these first heating columns 3 and their bottom is respectively equipped with heater 4, heater 4 is connected to heating controller 5, and test upper cover 2 is provided with second heating column 6 corresponding with the first heating column 3, the Isolated by the second insulating barrier 10 between two heating columns 6, first heating column the 3, second heating column 6 be equipped with temperature sensor 7, The most all first heating column 3 bottom same positions arrange temperature sensor 7, and all second heating column 6 top same positions set Putting temperature sensor 7, these temperature sensors 7 are connected with temperature-detecting device 8 signal, are put by electrodes of lithium-ion batteries during test Between testing base 1 and test upper cover 2, temperature-detecting device 8 detects the second heating column 6 ramp-up time.
In this example, first heating column the 3, second heating column 6 is cylinder, and the first heating column 3 in testing base 1 is in battle array Row are arranged, the second heating column 6 on test upper cover 2 is arranged in array, using as the multiple test points on pole piece.
In order to ensure the uniformity that pole piece thermal conductivity detects, the upper surface of the first heating column 3 and the upper table of the first felt pad 9 Face is in the same plane, and the lower surface of the second heating column 6 and the lower surface of the second felt pad 10 are in the same plane.
Wherein temperature-detecting device 8 includes that the display screen that single-chip microcomputer electrically connects with described single-chip microcomputer, described single-chip microcomputer include Temperature collect module, timing module, the processing module that ramp-up time is compared with Preset Time and with described processing module The display module connected, described display module is connected to show result with described display screen.
The method using electrodes of lithium-ion batteries thermal conductivity consistency detection device, comprises the following steps:
(1) pole piece to be measured is placed in 10~35 DEG C of calorstats, measures after temperature stabilization;
(2) testing base and test upper cover are placed in 10~35 DEG C of calorstats, test after temperature stabilization;
(3) being heated the first heating column by heater, the temperature of the first heating column controls at 40~100 DEG C, Heating power is controlled consistent by heating controller;
(4) pole piece that step (1) obtains is placed between testing base and test upper cover, covers upper cover, start timing, note Recording each second heating column temperature and rise 5~10 DEG C of times used, each second heating column ramp-up time is when default It is qualified that pole piece in the range of between is judged to.
Examples detailed above only for technology of the present utility model design and feature are described, its object is to allow and is familiar with technique Personnel will appreciate that content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All The equivalent transformation done according to this utility model spirit or modification, all should contain protection domain of the present utility model it In.

Claims (4)

1. electrodes of lithium-ion batteries thermal conductivity consistency detection device, it is characterised in that: include testing base (1), test upper cover And temperature-detecting device (8) (2), described testing base (1) is provided with several the first heating columns (3), described several first Isolated by the first felt pad (9) between heating column (3) and be respectively equipped with heater (4), described heater bottom them (4) being connected to heating controller (5), described test upper cover (2) is provided with second heat conduction corresponding with described first heating column (3) Post (6), is isolated by the second felt pad (10) between several second heating columns (6), described first heating column (3), second leads Being equipped with temperature sensor (7) on plume (6), described temperature sensor (7) is connected with described temperature-detecting device (8) signal, Being placed in by pole piece during test between testing base (1) and test upper cover (2), temperature-detecting device (8) detects the second heating column (6) Ramp-up time.
Electrodes of lithium-ion batteries thermal conductivity consistency detection device the most according to claim 1, it is characterised in that: described One heating column (3), the second heating column (6) are cylinder.
Electrodes of lithium-ion batteries thermal conductivity consistency detection device the most according to claim 1, it is characterised in that: described The upper surface of one heating column (3) and the upper surface of the first felt pad (9) are in the same plane, described second heating column (6) The lower surface of lower surface and the second felt pad (10) is in the same plane.
Electrodes of lithium-ion batteries thermal conductivity consistency detection device the most according to claim 1, it is characterised in that: described temperature Degree detection device (8) includes that the display screen that single-chip microcomputer electrically connects with described single-chip microcomputer, described single-chip microcomputer include temperature acquisition mould Block, timing module, the processing module that ramp-up time is compared with Preset Time and the display being connected with described processing module Module, described display module is connected to show result with described display screen.
CN201620752159.3U 2016-07-18 2016-07-18 Electrodes of lithium-ion batteries thermal conductivity consistency detection device CN205861590U (en)

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Application Number Priority Date Filing Date Title
CN201620752159.3U CN205861590U (en) 2016-07-18 2016-07-18 Electrodes of lithium-ion batteries thermal conductivity consistency detection device

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Application Number Priority Date Filing Date Title
CN201620752159.3U CN205861590U (en) 2016-07-18 2016-07-18 Electrodes of lithium-ion batteries thermal conductivity consistency detection device

Publications (1)

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CN205861590U true CN205861590U (en) 2017-01-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106198618A (en) * 2016-07-18 2016-12-07 金龙联合汽车工业(苏州)有限公司 Electrodes of lithium-ion batteries thermal conductivity consistency detection device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106198618A (en) * 2016-07-18 2016-12-07 金龙联合汽车工业(苏州)有限公司 Electrodes of lithium-ion batteries thermal conductivity consistency detection device and method
CN106198618B (en) * 2016-07-18 2019-03-15 金龙联合汽车工业(苏州)有限公司 Electrodes of lithium-ion batteries thermal conductivity consistency detection device and method

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AV01 Patent right actively abandoned

Granted publication date: 20170104

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