Yan Ji

Papers

Total Citations

938

H-Index

About

Yan Ji is a pioneering researcher in electrochemical energy storage, with a focus on lithium-ion battery performance under extreme conditions. His most influential work centers on enabling battery operation at subfreezing temperatures—a critical barrier to electric vehicle adoption in cold climates. Ji’s landmark 2016 paper, “Lithium-ion battery structure that self-heats at low temperatures,” has garnered over 850 citations, introducing a novel self-heating mechanism that allows batteries to rapidly warm from -20°C to 0°C before charging. This breakthrough directly addresses the dual challenge of slow charging and lithium dendrite growth, which otherwise shortens battery life and poses safety risks. In a related study, Ji demonstrated fast rechargeability at subfreezing temperatures, showing that preheating prevents capacity loss and extends cycle life. His work has been instrumental in advancing all-climate battery technology, with implications for electric vehicles, portable electronics, and grid storage. Recognized for translating fundamental electrochemistry into practical solutions, Ji’s contributions have shaped next-generation battery design, earning him a reputation as a key innovator in low-temperature energy storage.