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Battery testing and analyzing structure, and manufacturing method therefor, as well as battery testing and analyzing method

A technology for battery testing and battery cells, which is applied in the manufacture of electrolyte batteries, secondary batteries, and final product manufacturing. It can solve problems such as measurement error, low work efficiency, and differences in symmetrical batteries.

Pending Publication Date: 2019-02-15
JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above scheme can calculate the accuracy of the separator’s conductivity to a certain extent, but this scheme still has the following defects at least: first, the method needs to prepare multiple sets of symmetrical batteries containing different separator layers; second, different environments There are differences in the symmetrical batteries under the test, resulting in large errors in the measurement results; third, it is necessary to repeatedly test multiple sets of symmetrical batteries, and the work efficiency is low

Method used

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  • Battery testing and analyzing structure, and manufacturing method therefor, as well as battery testing and analyzing method
  • Battery testing and analyzing structure, and manufacturing method therefor, as well as battery testing and analyzing method
  • Battery testing and analyzing structure, and manufacturing method therefor, as well as battery testing and analyzing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1~3 As shown, a battery test and analysis structure includes a package case, n sequentially stacked battery cells 1 accommodated in the package case, and an electrolyte injected into the package case. The battery cell 1 includes a first pole piece 11, a second The dipole piece 12 and the isolation film 13 arranged between the first pole piece 11 and the second pole piece 12, the number of layers of the isolation film 13 of n cells 1 is 1, 2, 3... n , the first pole piece 11 and the second pole piece 12 are both provided with tabs 5 . Because measuring the physical and chemical properties of battery materials in the finished battery environment is more accurate than measuring battery materials alone, and in a battery environment, the composition and temperature changes of the electrolyte are basically the same, so the n different separators 13 layers Several battery cells 1 are stacked in sequence and placed in the same package to form a battery test and...

Embodiment 2

[0047] The difference from Embodiment 1 is that in this embodiment, both the first pole piece 11 and the second pole piece 12 of at least one battery cell 1 are positive pole pieces. For example, the first pole piece 11 and the second pole piece 12 of one of the battery cells 1 are positive pole pieces, and the first pole piece 11 and the second pole piece 12 of the remaining battery cells 1 are negative pole pieces, which can be used to test the separator 13 Ionic conductivity and the impedance of the positive and negative plates; it should be noted that the division of the above functions is only used as an example. In practical applications, it can be set according to the needs to measure the impedance of the positive plate and copper foil substrate, the positive plate and the impedance of the aluminum foil substrate, or the impedance of the positive electrode sheet and the nickel foil substrate.

[0048] Other structures are the same as those in Embodiment 1, and will not ...

Embodiment 3

[0050] The difference from Embodiment 1 is that the first pole piece 11 and the second pole piece 12 of at least one battery cell 1 in this embodiment are both negative pole pieces. For example, the first pole piece 11 and the second pole piece 12 of one cell 1 are negative pole pieces, and the first pole piece 11 and the second pole piece 12 of the remaining battery cells 1 are positive pole pieces, which can be used to test the separator 13 Ionic conductivity and the impedance of the positive and negative electrodes; it should be noted that the division of the above functions is used as an example. In practical applications, it can be set according to the needs to measure the impedance of the negative electrode and copper foil substrate, the negative electrode and the impedance of the aluminum foil substrate, or the impedance of the negative electrode and the nickel foil substrate.

[0051] Other structures are the same as those in Embodiment 1, and will not be repeated here...

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PUM

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Abstract

The invention discloses a battery testing and analyzing structure, comprising a packaging shell, sequentially stacked n cells contained in the packaging shell, and an electrolyte injected into the packaging shell. The cells comprise a first pole piece, a second pole piece and an isolation film provided between the first pole piece and the second pole piece. The isolation film number of the n cellsis sequentially 1, 2, 3...n. The first pole piece and the second pole piece are both provided with pole lugs. According to the battery testing and analyzing structure, the battery material can be tested in the finished battery environment, so that the error generated by separately measuring the raw material of the battery is reduced; and multiple cells with different isolation film number or withpositive and negative pole pieces are flexible used for stacking, so that not only the impedance and the conductivity of the battery material can be measured in the same battery environment, but alsothe physicochemical characteristics of the battery material can be efficiently and accurately analyzed. In addition, the invention further discloses a manufacturing method for the battery testing andanalyzing structure, and a battery testing and analyzing method.

Description

technical field [0001] The invention belongs to the technical field of battery analysis devices, and in particular relates to a battery test and analysis structure, a manufacturing method thereof, and a battery test and analysis method. Background technique [0002] Today, with the advent of the high-tech era of information technology, the form of energy applications is changing, and the demand for renewable, pollution-free, small discrete, portable high-performance power supplies is growing rapidly. All countries are vigorously developing green and high-efficiency secondary batteries. As a new type of secondary battery, lithium-ion batteries have the advantages of high energy density and power density, high working voltage, light weight, small size, long cycle life, good safety, and environmental protection. They are widely used in portable appliances, electric tools, large Energy storage, electric transportation power supply and other aspects have broad application prospe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/378G01R31/389H01M10/0525H01M10/058
CPCH01M10/0525H01M10/058Y02E60/10Y02P70/50
Inventor 袁威姜斌武冬冬赵阳雨郑大明廉俊杰
Owner JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD