TY - JOUR
T1 - Electrolyte Design Principles for Fast Charging in High-Voltage Lithium Batteries
AU - Piao, Yanchen
AU - Ye, Yusheng
AU - Zhang, Yongxin
AU - Wu, Feng
AU - Lyu, Jingmei
AU - Chen, Renjie
N1 - Publisher Copyright:
© 2026 American Chemical Society
PY - 2026/3/13
Y1 - 2026/3/13
N2 - Enhancing charging rates is pivotal for electrified technologies, motivating the development of “charge-and-go” energy storage systems. High-voltage batteries are particularly attractive as the energy output scales with both voltage and capacity. However, fast-charging at high voltages is fundamentally constrained by sluggish Li+ transport and interfacial degradation. Rational electrolyte design is therfore a critical strategy to overcome these limitations. In this Review, we examine the key mechanistic origins of these limitations and summarize electrolyte-driven solutions for high-voltage, fast-charging lithium batteries. We summarize recent advances across five strategies, including fluorinated electrolytes, superconcentrated and localized high-concentration electrolytes, competitive and cooperative coordination, electron-donor molecular design, and asymmetric molecular architectures. We further elucidate the correlation between operating voltage and ionic conductivity in emerging high-voltage fast-charging electrolytes and highlight cathode–electrolyte redox dynamics and structure–property relationships. These insights establish design principles to guide next-generation lithium batteries and broaden the landscape of electrochemical energy storage systems.
AB - Enhancing charging rates is pivotal for electrified technologies, motivating the development of “charge-and-go” energy storage systems. High-voltage batteries are particularly attractive as the energy output scales with both voltage and capacity. However, fast-charging at high voltages is fundamentally constrained by sluggish Li+ transport and interfacial degradation. Rational electrolyte design is therfore a critical strategy to overcome these limitations. In this Review, we examine the key mechanistic origins of these limitations and summarize electrolyte-driven solutions for high-voltage, fast-charging lithium batteries. We summarize recent advances across five strategies, including fluorinated electrolytes, superconcentrated and localized high-concentration electrolytes, competitive and cooperative coordination, electron-donor molecular design, and asymmetric molecular architectures. We further elucidate the correlation between operating voltage and ionic conductivity in emerging high-voltage fast-charging electrolytes and highlight cathode–electrolyte redox dynamics and structure–property relationships. These insights establish design principles to guide next-generation lithium batteries and broaden the landscape of electrochemical energy storage systems.
UR - https://www.scopus.com/pages/publications/105032737642
U2 - 10.1021/acsenergylett.5c04182
DO - 10.1021/acsenergylett.5c04182
M3 - Review article
AN - SCOPUS:105032737642
SN - 2380-8195
VL - 11
SP - 2636
EP - 2646
JO - ACS Energy Letters
JF - ACS Energy Letters
IS - 3
ER -