The Development of Optimal Charging Protocols for Lithium-Ion Batteries to Reduce Lithium Plating

• DOI: 10.1016/j.est.2021.102573
• Publication Date: 2021-04-29T03:22:53Z
• Authors: Upender Rao Koleti; Truong Ngoc Minh Bui; Truong Quang Dinh; James Marco
• Keywords: TK; 01 natural sciences; 7. Clean energy; 0104 chemical sciences

The study proposes two novel fast-charging strategies for lithium-ion batteries that prevent or minimize the occurrence of lithium plating. A new impedance tracking (IT) method that detects the onset of lithium plating is used to derive the charge profiles for both offline and online application at an ambient temperature of 20 °C for an NCA/graphite-based 18,650 type commercial cell. Charging performance and capacity fade trends for the proposed charging strategies are evaluated against the standard constant current/constant voltage (CCsingle bondCV) charging profile. Experimental results indicate that the proposed strategies can extend the battery life by more than 75% when compared to the CCsingle bondCV profile with only a marginal increase in associated charge time.\ud \ud