[Technical Data] Square Lithium-ion Battery LIB-08

A document detailing the results of heat measurement during the charge and discharge process of square lithium-ion batteries!

This document is a technical report on the measurement of heat during the charge and discharge process of rectangular lithium-ion batteries (006P). Rectangular lithium-ion batteries are commonly found in many applications. When the cell shape is rectangular, the heat generation from the hexahedral battery occurs at six locations, which is why the calorimeter for rectangular batteries is designed so that all six faces are equipped with heat flow sensors. However, the only surface in contact with the battery is the bottom face, while the other five faces remain non-contact. This structure results in a calorimeter with a very large time constant for the heat flow signal, causing a significantly delayed response of the heat flow signal. To improve the response of the heat flow signal from conventional calorimeters, we have newly developed the "A6 Heat Flow Detection Module," which sandwiches the rectangular battery between heat flow sensors for measurement. [Contents (excerpt)] ■ Fig-01: Joule heat calibration of the heat flow sensor module ■ Fig-02: Voltage changes and heat flow measurements during the charge and discharge process of 006P_7.4V_2600mAh 0.1CC ■ Fig-03: Heat flow measurement during the discharge process of 006P_7.4V_2.6Ah 0.1CC *For more details, please refer to the PDF document or feel free to contact us.

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