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US 11,906,492 B2Granted
Apparatus for quantitatively analyzing oxygen generated in battery material
AssigneeLG Energy Solution, Ltd.
InventorsSungwon Hong, Kyungmee Lee, Nak Hee Choi, Jeong Ae Ahn, Jin Il Kim
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Abstract
An apparatus for quantitatively analyzing gas, particularly oxygen, generated in a battery material, particularly a cathode material is provided. The apparatus contains a switching valve and a sampling loop in a pyrolyzer, thereby allowing an EGA method, which was used only for the qualitative analysis of gas generated from a solid sample, to be used for the quantitative analysis of gas generated at a specific temperature when heat is applied by the pyrolyzer in a battery material.
Claims10
An apparatus for quantitative analysis of a gas sample, comprising:
- a pyrolyzer;
- a line for supplying a carrier gas into the pyrolyzer;
- a sampling loop for collecting a standard gas;
- a switching valve for injecting the standard gas collected in the sampling loop together with the carrier gas into the pyrolyzer;
- and
- a vacuum pump configured to vacuum depressurize the sampling loop,
- wherein the sampling loop is directly coupled to the switching valve, and the switching valve is directly coupled to the pyrolyzer through the line for supplying the carrier gas, and
- wherein the sampling loop and the switching valve are configured to inject the standard gas into the pyrolyzer at a constant amount.
5 more elements
Dependencies are inferred from the claim text.