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See Chinese contents: GB/T 41704-2022 GB/T 41704-2022: Test methods of cathode materials for lithium ion battery - Determination of magnetic impurities content and residual alkali content
This document specifies the determination method for magnetic impurities content and residual alkali content in the cathode materials for lithium ion battery. This document is applicable to the determination of magnetic impurities content and residual alkali content in the cathode materials for lithium ion battery. The determination range of the magnetic impurities content is ? 1 ?g/kg; the determination range of residual alkali content (mass fraction) is 0.001% ~ 2.500%.
