A linear regression over an HPPC discharge pulse estimates the open-circuit voltage drop and corrects the internal resistance estimate, cutting simulation errors from up to 292% to at most 49% and lowering real-cell resistance estimates by up to 20 mOhm.
Status and challenges facing representative anode materials for rechargeable lithium batteries,
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An Improved Approach to Estimate the Internal Resistance of a Battery During the HPPC Test
A linear regression over an HPPC discharge pulse estimates the open-circuit voltage drop and corrects the internal resistance estimate, cutting simulation errors from up to 292% to at most 49% and lowering real-cell resistance estimates by up to 20 mOhm.