首页|Simple electrode assembly engineering:Toward a multifunctional lead-acid battery
Simple electrode assembly engineering:Toward a multifunctional lead-acid battery
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Electrochemical energy storage is a promising technology for the integration of renewable energy.Lead-acid battery is perhaps among the most successful commercialized systems ever since thanks to its excel-lent cost-effectiveness and safety records.Despite of 165 years of development,the low energy density as well as the coupled power and energy density scaling restrain its wider application in real life.To address this challenge,we optimized the configuration of conventional Pb-acid battery to integrate two gas dif-fusion electrodes.The novel device can work as a Pb-air battery using ambient air,showing a peak power density of 183 mW cm-2,which was comparable with other state-of-the-art metal-O2 batteries.It can also behave as a fuel cell,simultaneously converting H2 and air into electricity with a peak power density of 75 mW cm-2.Importantly,this device showed little performance degradation after 35 h of the long-evity test.Our work shows the exciting potential of lead battery technology and demonstrates the impor-tance of battery architecture optimization toward improved energy storage capacity.
Xiaojuan Cao、Xiaoyu Yan、Kai Zhao、Le Ke、Xiaoyi Jiang、Lingjiao Li、Ning Yan
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Key Laboratory of Artificial Micro-and Nano-Structures of Ministry of Education,School of Physics and Technology,Wuhan University,Wuhan 430072,Hubei,China
Shenzhen Research Institute of Wuhan University,Shenzhen 518057,Guangdong,China
funding through the National Natural Science Foundation of ChinaGuangdong Basic and Applied Basic Research Foundation
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