TY - JOUR N1 - 2024 The Authors. Published by American Chemical Society. This publication is licensed under CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/). KW - lithium-ion battery KW - photothermal enhancement KW - electrochemical impedance spectroscopy KW - light-enhanced electrochemical reactions KW - renewable energy technologies KW - hybrid energy storage KW - Prussian blue analogues TI - Photothermal Enhancement of Prussian Blue Cathodes for Li-Ion Batteries AV - public IS - 30 EP - 9154 VL - 24 SP - 9147 PB - AMER CHEMICAL SOC JF - Nano Letters A1 - Tan, Lifu A1 - Kim, Byung-Man A1 - Pujari, Arvind A1 - He, Ze A1 - Boruah, Buddha Deka A1 - De Volder, Michael Y1 - 2024/// N2 - Photoenhanced batteries, where light improves the electrochemical performance of batteries, have gained much interest. Recent reports suggest that light-to-heat conversion can also play an important role. In this work, we study Prussian blue analogues (PBAs), which are known to have a high photothermal heating efficiency and can be used as cathodes for Li-ion batteries. PBAs were synthesized directly on a carbon collector electrode and tested under different thermally controlled conditions to show the effect of photothermal heating on battery performance. Our PBA electrodes reach temperatures that are 14% higher than reference electrodes using a blue LED, and a capacity enhancement of 38% was achieved at a current density of 1600 mA g-1. Additionally, these batteries show excellent cycling stability with a capacity retention of 96.6% in dark conditions and 94.8% in light over 100 cycles. Overall, this work shows new insights into the effects leading to improved battery performance in photobatteries. ID - discovery10196763 UR - http://dx.doi.org/10.1021/acs.nanolett.4c00752 ER -