Dendritic Nanostructured Waste Copper Wires for High-Energy Alkaline Battery

作     者：Nilesh RChodankar Su‑Hyeon Ji Young‑Kyu Han Do‑Heyoung Kim Nilesh R. Chodankar;Su?Hyeon Ji;Young?Kyu Han;Do?Heyoung Kim

作者机构：School of Chemical EngineeringChonnam National UniversityGwangju 500‑757South Korea Department of Energy and Materials EngineeringDongguk UniversitySeoul 100‑715Republic of Korea 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2020年第12卷第1期

页      面：1-12页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：supported by the National Research Foundation of Korea (NRF-2017R1E1A1A03070930) 

主　　题：Alkaline batteries Dendritic nanostructure NiCo-hydroxide Waste Cu wires 

摘      要：Rechargeable alkaline batteries(RABs)have received remarkable attention in the past decade for their high energy,low cost,safe operation,facile manufacture,and ecofriendly *** date,expensive electrode materials and current collectors were predominantly applied for RABs,which have limited their real-world *** the present work,we propose a scalable process to utilize electronic waste(e-waste)Cu wires as a cost-effective current collector for high-energy wire-type ***,the vertically aligned CuO nanowires were prepared over the waste Cu wires via in situ alkaline ***,both atomiclayer-deposited NiO and NiCo-hydroxide were applied to the CuO nanowires to form a uniform dendritic-structured NiCo-hydroxide/NiO/CuO/Cu *** the prepared dendritic-structured electrode was applied to the RAB,it showed excellent electrochemical features,namely high-energy-density(82.42 Wh kg−1),excellent specific capacity(219 mAh g−1),and long-term cycling stability(94%capacity retention over 5000 cycles).The presented approach and material meet the requirements of a cost-effective,abundant,and highly efficient electrode for advanced eco-friendly *** importantly,the present method provides an efficient path to recycle e-waste for value-added energy storage applications.