基于Na-BP-DME@C阳极的长寿命准固态钠-空气电池  

Long lifespan quasi-solid-state sodium-air batteries based on Na-BP-DME@C anode

作　　者：赵振刚[1,2,3] 牛文辉 姚正银 侯敏杰 解志鹏 张达 梁风[1,2,3] ZHAO Zhengang;NIU Wenhui;YAO Zhengyin;HOU Minjie;XIE Zhipeng;ZHANG Da;LIANG Feng(Key Laboratory for Nonferrous Vacuum Metallurgy of Yunnan Province,Kunming University of Science and Technology,Kunming 650093,China;National Engineering Research Center of Vacuum Metallurgy,Kunming University of Science and Technology,Kunming 650093,China;Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]昆明理工大学云南省有色金属真空冶金重点实验室,昆明650093 [2]昆明理工大学真空冶金国家工程研究中心,昆明650093 [3]昆明理工大学冶金与能源工程学院,昆明650093

出　　处：《有色金属科学与工程》2024年第2期204-211,共8页Nonferrous Metals Science and Engineering

基　　金：国家自然科学基金资助项目(12175089,12205127);云南省重点研发计划项目(202103AF140006);云南省基础研究计划项目(202001AW070004,202301AS070051,202301AU070064);云南省重大科技计划项目(202202AG050003)。

摘　　要：钠-空气电池因其能量密度高、成本低而成为金属-空气电池领域的研究热点。然而,以金属钠为阳极的钠-空气电池存在钠枝晶生长、金属钠界面稳定性差以及金属钠的反应活性高等问题,限制了钠-空气电池的快速发展。为解决上述问题,将联苯钠与导电炭黑复合材料Na-BP-DME@C作为阳极,单壁碳纳米角(SWCHNs)作为催化剂,构建准固态钠-空气电池。基于Na-BP-DME@C阳极的准固态钠-空气电池表现出优异的电化学性能,其电压差为1.5 V,功率密度为3.32 mW/cm^(2),在0.1 mA/cm^(2)电流密度下可稳定循环459 h(约459次)。Sodium-air batteries have become a hot research topic in metal-air batteries due to their high energy density and low cost.However,with metallic sodium as an anode,they suffer from problems such as sodium dendrite growth,poor interfacial stability and high reactivity of metallic sodium,which limits their rapid development.In order to solve the problems above,in this study,sodium biphenyl was combined with conductive carbon black(Na-BP-DME@C)as the anode material and single-walled carbon nanohorns(SWCHNs)as the catalyst to construct quasi-solid-state sodium-air batteries.The quasi-solid-state sodium-air battery based on Na-BP-DME@C anode exhibited excellent electrochemical performance with a voltage gap of 1.5 V,a power density of 3.32 mW/cm^(2),and a stable cycle for 459 h(approximately 459 cycles)at a current density of 0.1 mA/cm^(2).

关 键 词：准固态钠-空气电池 Na-BP-DME@C阳极 长寿命 

分 类 号：TM911.41[电气工程—电力电子与电力传动]