Hybrid aqueous rechargeable batteries have attracted broad attention due to their cost,safety,and environmental advantages.Nevertheless,a large proportion of the reported long-life and high-power performances are acco...Hybrid aqueous rechargeable batteries have attracted broad attention due to their cost,safety,and environmental advantages.Nevertheless,a large proportion of the reported long-life and high-power performances are accomplished with a low mass-loading at the cathode(2 mg cm^(-2)).To overcome this challenge,we propose an aqueous rechargeable copper ammonium hybrid battery,which includes an NH_(4)^(+)-rich copper hexacyanoferrate(N-CuHCF)cathode,a Cu foil anode and a hybrid aqueous electrolyte(1 M NH_(4)^(+)+0.1 M Cu^(2+)).Its operation involves a reversible NH_(4)^(+)insertion/extraction reaction at the cathode and Cu plating/stripping at the anode.The unique working mechanism enables this hybrid-ion battery to show a long-term lifespan(over 10000 cycles).Moreover,this battery exhibits high specific capacity and a long-life property(1000 cycles)even with a high mass-loading(20 mg cm^(-2))of N-CuHCF at the cathode.展开更多
基金supported by the National Natural Science Foundation of China(22209082)the Natural Science Foundation of Zhejiang Province(LY23B030005)+1 种基金the Natural Science Foundation of Ningbo(2023J098)Research Initiation Fund of Ningbo University.
文摘Hybrid aqueous rechargeable batteries have attracted broad attention due to their cost,safety,and environmental advantages.Nevertheless,a large proportion of the reported long-life and high-power performances are accomplished with a low mass-loading at the cathode(2 mg cm^(-2)).To overcome this challenge,we propose an aqueous rechargeable copper ammonium hybrid battery,which includes an NH_(4)^(+)-rich copper hexacyanoferrate(N-CuHCF)cathode,a Cu foil anode and a hybrid aqueous electrolyte(1 M NH_(4)^(+)+0.1 M Cu^(2+)).Its operation involves a reversible NH_(4)^(+)insertion/extraction reaction at the cathode and Cu plating/stripping at the anode.The unique working mechanism enables this hybrid-ion battery to show a long-term lifespan(over 10000 cycles).Moreover,this battery exhibits high specific capacity and a long-life property(1000 cycles)even with a high mass-loading(20 mg cm^(-2))of N-CuHCF at the cathode.
