Enabling Low-Temperature Zinc–Bromine Microbatteries with an Additive-Free Electrolyte Design DOI
Jiajun Guo,

Linyu Hu,

Rui Wang

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 2, 2025

Aqueous zinc–bromine microbatteries (Zn–Br2 MBs) are promising energy storage devices for miniaturized electronic applications. However, their performance in low-temperature environments remains a challenge due to poor compatibility between antifreeze agents and complexing agents. In this work, we propose an additive-free electrolyte design address incompatibility from the source. An electrochemically active 7.5 m zinc bromide solution was found have low freezing point of −105 °C, while also inhibiting polybromide dissolution. Zn–Br2 using demonstrated excellent cycling stability, with over 10,000 cycles (99% capacity retention) at 25 °C more than 2000 (98% −60 °C. Both experimental data theoretical calculations demonstrate that inhibit This work addresses issue agents, challenging traditional reliance on organic prevent dissolution systems.

Language: Английский

Enabling Low-Temperature Zinc–Bromine Microbatteries with an Additive-Free Electrolyte Design DOI
Jiajun Guo,

Linyu Hu,

Rui Wang

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 2, 2025

Aqueous zinc–bromine microbatteries (Zn–Br2 MBs) are promising energy storage devices for miniaturized electronic applications. However, their performance in low-temperature environments remains a challenge due to poor compatibility between antifreeze agents and complexing agents. In this work, we propose an additive-free electrolyte design address incompatibility from the source. An electrochemically active 7.5 m zinc bromide solution was found have low freezing point of −105 °C, while also inhibiting polybromide dissolution. Zn–Br2 using demonstrated excellent cycling stability, with over 10,000 cycles (99% capacity retention) at 25 °C more than 2000 (98% −60 °C. Both experimental data theoretical calculations demonstrate that inhibit This work addresses issue agents, challenging traditional reliance on organic prevent dissolution systems.

Language: Английский

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