Zn/NH4 Co-insertion Thermal Charging Cell

High power at 35 K ΔT

A Zn²⁺/NH₄⁺ hybrid-ion electrolyte enables both high voltage and fast ion diffusion, significantly boosting power density while maintaining the high output voltage of Zn-based thermal charging cells.

Zhiwei, Han · Shengliang, Zhang · Helang, Huang · Wang, Jing · Dou, Hui · Zhang, Tianran · Zhang, Xiaogang

Nano-Micro Letters 2026

Specifications

热电势

{'zh': '12.5', 'en': ''} mV K⁻¹

归一化功率密度

{'zh': '19.6', 'en': ''} mW m⁻²

卡诺相对效率

{'zh': '12.74', 'en': ''} %

Advantages

Continuous operation over 72 h