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A single cell assembly structure of mesoporous thermal battery

A single battery and assembly structure technology, applied in the direction of primary battery to battery grouping, structural parts, battery pack parts, etc., can solve the problems of limiting the specific energy of the battery and occupying the radial space of the battery, so as to improve the specific energy level and improve Volume occupancy, effect of improving insulation capacity

Active Publication Date: 2021-12-14
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of metal parts, this assembly method must improve the insulation design of the battery assembly
In addition, this assembly method occupies the radial space of the battery, so it also limits the improvement of the specific energy of the battery

Method used

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  • A single cell assembly structure of mesoporous thermal battery
  • A single cell assembly structure of mesoporous thermal battery
  • A single cell assembly structure of mesoporous thermal battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1. Mesoporous single-layer single-cell battery combination (refer to the attached figure 1 )

[0042] The negative electrode sheet 1, the electrolyte sheet 2, the positive electrode sheet 3, and the iron powder sheet 4 are sequentially stacked to form a single battery.

[0043] 2. Assembly of the mesoporous monolayer sheet (refer to attached image 3 )

[0044] A number of single cells are penetrated through the central core rod to form a stack, and then the stack is placed on a pressure-controllable compression device to be compressed to form a whole. The stack passes through the rotating device of the mechanism and is used The fiberglass tape is wrapped and tightened before being taped in place.

Embodiment 2

[0046] 1. Mesoporous double-sheet single battery combination (refer to the attached figure 2 )

[0047] Stack the negative electrode sheet, the double-layer sheet 5 and the iron powder sheet sequentially to form a single battery.

[0048] 2. Assembly of the mesoporous bilayer sheet (refer to the attached image 3 )

[0049] The assembly was carried out in the same manner as the assembly of mesoporous monolayer sheets.

Embodiment 3

[0050] Embodiment 3: discharge test

[0051] Discharge test: battery size: Φ57×54, single cell diameter 50mm, 16 single cells, 17 iron powders, discharge current 20A, discharge voltage 24.5V, the results are recorded in Table 1.

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PUM

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Abstract

The invention discloses an assembly structure of a single cell of a mesoporous thermal battery, which belongs to the technical field of thermal batteries, and is characterized in that: the diameter of a core rod is equal to the inner diameter of the center hole of a single cell of a mesoporous thermal battery; a rotating mechanism for driving the core rod to rotate , the power output shaft of the rotating mechanism is fixedly connected to one end of the core rod; the pressing device is sleeved on the core rod; wherein: a single battery combination composed of a plurality of mesothermal battery cells is sleeved on the core rod Above, the unit battery assembly is located between the pressing device and the rotating mechanism. The assembly technology of the mesoporous single battery of the present invention is a model without a fastening frame, and a metal-free assembly structure outside the battery cell stack can improve the insulation capacity of the thermal battery itself. The present invention adopts the method of assembling without assembly frame, the core rod is fixed, and the electric stack is fixed without assembly frame, and the diameter of the battery is increased in the limited battery space, thereby increasing the volume occupancy rate of the active material of the battery and improving the battery life. specific energy level.

Description

technical field [0001] The invention belongs to the technical field of thermal batteries, and in particular relates to an assembly structure of a single cell of a mesopore thermal battery. Background technique [0002] The thermal battery is a kind of thermally activated reserve battery that uses the heating system of the battery itself to heat and melt the non-conductive solid-state salt electrolyte into an ion conductor and enter the working state. It has the characteristics of high theoretical specific power and specific energy, rapid activation, short working life, long storage life, wide service temperature, good mechanical properties, no maintenance, high reliability, and is widely used in various weapon fields. [0003] At present, the single battery of the thermal battery is generally a single battery without a middle hole. This single battery is assembled in the assembly frame. First, the upper and lower end plates of the battery, the single battery, the current col...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/213H01M6/36H01M6/42H01M50/204
Inventor 赵晋峰辛宇光刘晓伟高晓燕谢婷婷
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST