Clamp and method for measuring size of battery cell

A cell and volume technology, used in the field of fixtures for measuring cell volume, can solve problems such as low efficiency and poor accuracy, and achieve the effects of accurate measurement, convenient operation, and improvement of poor accuracy.

Inactive Publication Date: 2017-11-24
NORTHERN ALTAIR NANOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a fixture for measuring the volume of the battery cell, which is used to improve the technical problems of poor precision and low efficiency caused by the traditional use of vernier calipers

Method used

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  • Clamp and method for measuring size of battery cell
  • Clamp and method for measuring size of battery cell
  • Clamp and method for measuring size of battery cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] According to one aspect of the present invention, a fixture for measuring the volume of a cell is provided, wherein, figure 1 It is a structural schematic diagram of the fixture for measuring the volume of the cell in the present invention; figure 2 It is the front view of the fixture for measuring the cell volume; image 3 Side view of the fixture for measuring cell volume; Figure 4 is a schematic diagram of the structure of the locking device; Figure 5 is a schematic diagram of the structure of the support bracket; Figure 6 is a schematic diagram of the auxiliary bracket; Figure 7 It is a structural schematic diagram of another fixture for measuring the volume of the cell in the present invention.

[0044] Such as Figure 1-3 As shown, the fixture for measuring the volume of the cell includes a barrel 1 for containing deionized water, a locking device 2 and a bracket assembly 3, one end of the locking device 2 fixes the cell, and the other end is connected t...

Embodiment 2

[0061] This embodiment provides a fixture for measuring the volume of the battery cell, wherein, Figure 7 It is a structural schematic diagram of another fixture for measuring the volume of the cell in the present invention.

[0062] Same as Example 1, the fixture for measuring the volume of the cell includes a barrel 1 for containing deionized water, a locking device 2 and a bracket assembly 3, one end of the locking device 2 fixes the cell, and the other end is connected to the bracket The components 3 are connected, and the battery cell can be immersed in the deionized water of the bucket body 1 through the locking device 2 .

[0063] A weighing device 4 for measuring weight is arranged below the barrel body 1 .

[0064] The difference between the present embodiment and the first embodiment mainly lies in the structure of the bracket assembly 3 and the connection method between the locking device 2 and the bracket assembly 3 .

[0065] Specifically, the bracket assembly ...

Embodiment 3

[0074] According to another aspect of the present invention, there is also provided a method for measuring the volume of the battery cell, which is determined by using the above-mentioned jig for measuring the volume of the battery cell, including the following steps:

[0075] (a) put the deionized water into the barrel, and weigh the weight of the deionized water with a weighing device;

[0076] (b) Lock one end of the locking device to the cell, and connect the other end to the bracket assembly, immerse the cell in deionized water in the barrel, adjust the height of the bracket assembly so that the water just covers the top of the cell, and read this The weight reading of the weighing device at the time;

[0077] (c) Calculate the volume of the cell through the changes in the weight readings in steps (a) and (b).

[0078] The volume of the cell is tested by the method of measuring the volume by draining water. Preferably, first put an appropriate amount of deionized water ...

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Abstract

The invention provides a clamp and method for measuring the size of a battery cell, and relates to the technical field of clamps. The clamp for measuring the size of the battery cell comprises a barrel containing deionized water, a locking device and a support assembly. The battery cell is fixed by one end of the locking device, the other end of the locking device is connected with the support assembly, the battery cell can be soaked with deionized water of the barrel through the locking device, the size of the battery cell is obtained through changes of weight reads obtained by a weighing device before and after the battery cell is placed into the deionized water, the clamp is simple in structure and convenient to operate, the size of the battery cell can be accurately measured, and the technical problems that the precision is poor and the efficiency is low due to the fact that the battery cell is measured by a traditional vernier caliper are solved. According to the method for measuring the size of the battery cell, the sizes of battery cells of various shapes can be accurately measured, whether expansion and other size changes occur or not after the battery cell is subjected to various performance tests can be visually measured, and the method is high in precision, simple and rapid.

Description

technical field [0001] The invention relates to the technical field of fixtures, in particular to a fixture and a method for measuring the volume of an electric core. Background technique [0002] With the development of the economy, the consumption of non-renewable energy, and the full utilization of electric energy have become a social consensus. High-energy, high-performance batteries are increasingly favored by the market. [0003] The power density, energy density and other performance of the battery cell have become an aspect that people pay close attention to, and the volume of the battery cell has also become an important indicator for the performance detection of the battery cell. The traditional cell volume measurement tool is mostly a vernier caliper, that is, the length, width, and height of the cell are measured by the vernier caliper, and then the volume of the cell is calculated. This kind of measurement method has poor accuracy, and there are many errors in ...

Claims

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Application Information

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IPC IPC(8): G01F17/00
CPCG01F17/00
Inventor 张海欣马书良宿斌马静胡庆书
Owner NORTHERN ALTAIR NANOTECH CO LTD
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