Manufacturing method of soft pack battery based on device that can measure internal temperature of battery

An internal temperature, soft pack battery technology, applied in the direction of measuring device, electrolyte battery manufacturing, using electrical devices, etc., can solve problems such as errors

Active Publication Date: 2019-03-15
SHANDONG YUHUANG NEW ENERGY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Since most of the existing test methods for the heat of reaction of batteries are limited to using tools such as thermistors on the surface of pouch batteries, the surface temperature of pouch batteries is tested under adiabatic conditions to estimate the distribution of the heat of reaction of the battery. This method has hysteresis and considerable big error

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  • Manufacturing method of soft pack battery based on device that can measure internal temperature of battery
  • Manufacturing method of soft pack battery based on device that can measure internal temperature of battery
  • Manufacturing method of soft pack battery based on device that can measure internal temperature of battery

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Embodiment

[0041] The invention provides a pouch battery manufacturing method based on a device that can accurately measure the internal temperature of the battery. After the short-circuit test of the test device is completed, it needs to be baked and dried. The drying parameters are: baking temperature 80°C, vacuum baking time 12h, Nitrogen was changed every 2 hours. For core package 6, laminated core package 6 is selected as the carrier. Here, a lithium iron phosphate type (wet-mixed ingredient) soft-pack laminated battery using internal model 50200125-EV10Ah technology is selected. The used core package should be dried at room temperature and humidity. ≤20% of the environment for assembly.

[0042] Such as image 3 As shown, insert the thermistor 5 into the thermistor inlay hole 3 of the corresponding circuit board 4 , test the paths of each thermistor 5 and ensure the flatness of the circuit board 4 . The size of the circuit board 4 and the number of thermistor inlay holes 3 are de...

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Abstract

The invention relates to the technical field of battery production, in particular to a method for making a pouch battery based on a device capable of measuring the internal temperature of the battery. The manufacturing method of the pouch battery based on the device that can measure the internal temperature of the battery is based on the test component and the battery main body. Insulation treatment and drying treatment; the assembly method of the battery core package is to sandwich the test parts with double cores, or clamp the test parts into the inside of the single core package, and then bake for short circuit test; The core thickness is top-side sealed, and then hot and cold pressed, and the test temperature data is numbered, that is, the corresponding lead wires and thermistors are numbered after pairing, and the data is linearized. The invention can flexibly adjust the vertical and horizontal positions of the entire test component in the core pack, and can flexibly test the temperatures of the positive and negative electrodes at different depths inside the battery as required.

Description

(1) Technical field [0001] The invention relates to the technical field of battery production, in particular to a method for making a pouch battery based on a device capable of measuring the internal temperature of the battery. (2) Background technology [0002] Single lithium ion soft pack battery is composed of positive electrode, negative electrode, separator, electrolyte and aluminum plastic film. Due to the characteristics of the structure of the pouch battery, the main body of the battery is relatively soft, and there are irregular aluminum-plastic film packaging edges. The cooling and heat dissipation of the battery cannot be carried out directly, and the support of the external shape is required. Therefore, the thermal structure design of the pouch battery needs to be regular. The optimization of the heat sink structure requires more accurate data on the heat distribution of the battery pack, so the measurement of the heat distribution of the soft package monomer mus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/058H01M10/48G01K7/22
CPCG01K7/22H01M10/058H01M10/486Y02E60/10Y02P70/50
Inventor 曹建建窦燕蒙王瑛赵成龙薛嘉渔
Owner SHANDONG YUHUANG NEW ENERGY TECH
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