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See Chinese contents: SJ/T 11795-2022 SJ/T 11795-2022: Test method for determining magnetic impurity content of electrode materials in lithium ion batteries
This document specifies the test method for magnetic impurity content in electrode materials of lithium-ion battery, including terms and definitions, test method summary, instruments and appliances, reagents, environmental requirements, pre-treatment, instrument analysis, result calculation, precision, reporting. This document is applicable to the testing of magnetic impurity content between 10 ¦Ìg/kg ~ 5000 ¦Ìg/kg, in positive and negative electrode powder materials of lithium-ion battery, their slurries, as well as binders, conductive agents and other auxiliary materials. This standard is not applicable to the detection of magnetic impurity content in lithium iron phosphate materials.
