High Performance Zn–Mn Cement Batteries for the Next Generation of Buildings (IMAGE)
Caption
- Conventional cementitious materials were engineered into active cementitious separators (ACSs) that function as capacity boosters rather than passive carriers, significantly enhancing the capacity of Zn–Mn batteries.
- Continously generated zinc sulfate hydroxide within ACSs acts as an effective proton buffer, suppressing electrolyte acidification and stabilizing birnessite-MnO2 deposition.
- ACSs-based Zn–Mn batteries achieve a balanced integration of structural integrity and electrochemical performance, delivering a ten-fold improvement in energy density (0.92 mWh cm−2 at 1.15 mW cm−2) and exceptional cycling stability (99.98% capacity retention after 1000 cycles).
Credit
Zhaolong Liu, Pan Feng*, Long Yuan, Ruidan Liu, Xiangyu Meng, Guanghui Tao, Jian Chen, Zaiping Guo*, Changwen Miao*.
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CC BY-NC-ND