Method for detecting oil content of lithium battery diaphragm by using DSC

Method for detecting oil content of lithium battery diaphragm by using DSC

The invention provides a method for detecting oil content of a lithium battery diaphragm by using DSC. The method comprises the following steps: taking 5-10mg of an oil-containing diaphragm sample ona lithium battery diaphragm body, taking 5-10mg of an oil-free diaphragm sample on an oil-free diaphr...

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Hauptverfasser: ZHANG YEQING, JIN CHENG, CHEN ZHAOHUI, WENG XINGXING
Format: Patent
Sprache:chi ; eng
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator ZHANG YEQING
JIN CHENG
CHEN ZHAOHUI
WENG XINGXING
description The invention provides a method for detecting oil content of a lithium battery diaphragm by using DSC. The method comprises the following steps: taking 5-10mg of an oil-containing diaphragm sample ona lithium battery diaphragm body, taking 5-10mg of an oil-free diaphragm sample on an oil-free diaphragm, carrying out enthalpy test on the oil-free diaphragm sample by using a differential calorimetry scanner at room temperature to obtain a first enthalpy value, carrying out enthalpy test on the oil-containing diaphragm sample by using the differential calorimetry scanner to obtain a second enthalpy value, subtracting the second enthalpy value from the first enthalpy value to obtain a difference value, and dividing the difference value by the first enthalpy value to obtain the oil content ofthe oil-containing diaphragm sample. Compared with the prior art, the method has the advantages that the test efficiency of the oil content of the lithium battery diaphragm is improved, and the methodis more environment-friend
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The method comprises the following steps: taking 5-10mg of an oil-containing diaphragm sample ona lithium battery diaphragm body, taking 5-10mg of an oil-free diaphragm sample on an oil-free diaphragm, carrying out enthalpy test on the oil-free diaphragm sample by using a differential calorimetry scanner at room temperature to obtain a first enthalpy value, carrying out enthalpy test on the oil-containing diaphragm sample by using the differential calorimetry scanner to obtain a second enthalpy value, subtracting the second enthalpy value from the first enthalpy value to obtain a difference value, and dividing the difference value by the first enthalpy value to obtain the oil content ofthe oil-containing diaphragm sample. 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The method comprises the following steps: taking 5-10mg of an oil-containing diaphragm sample ona lithium battery diaphragm body, taking 5-10mg of an oil-free diaphragm sample on an oil-free diaphragm, carrying out enthalpy test on the oil-free diaphragm sample by using a differential calorimetry scanner at room temperature to obtain a first enthalpy value, carrying out enthalpy test on the oil-containing diaphragm sample by using the differential calorimetry scanner to obtain a second enthalpy value, subtracting the second enthalpy value from the first enthalpy value to obtain a difference value, and dividing the difference value by the first enthalpy value to obtain the oil content ofthe oil-containing diaphragm sample. 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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title Method for detecting oil content of lithium battery diaphragm by using DSC
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