【摘 要】
：
Increasing attention has been paid to rechargeable aqueous batteries due to their high safety and low cost.However,they remain in their infancy because of the l
【机 构】
：
State Key Laboratory of Automotive Simulation and Control, and School of Materials Science & Enginee
论文部分内容阅读
Increasing attention has been paid to rechargeable aqueous batteries due to their high safety and low cost.However,they remain in their infancy because of the limited choice of available anode materials with high specific capacity and satisfying cycling performance.Bi metal with layered structure can act as an ideal anode material with high capacity;however,the energy storage mechanism has not well elucidated.Herein,we demonstrate that Bi metal enables affording ultra-high specific capacity (254.3 mAh g-1),superior rate capability and a capacity retention of 88.8％ after 1600 cycles.Different from the previously-reported redox reaction mechanisms of Bi electrode,efficient (de)alloying of K+ is responsible for its excellent performance.An excellent aqueous Bi battery is fabricated by matching Bi anode with Co(OH)2 cathode in KOH (1 M) electrolyte.Its outstanding performance is quite adequate and competitive for electrochemical energy storage devices.
其他文献
开展管理创新,创建矿井水处理低成本运行模式,实现矿井水低成本处理和达标排放,有助于提升企业的市场竞争力,有利于促进企业的品牌建设,具有显著的经济效益和社会效益。杨村
随着环境形势的变化,政府节能减排工作力度的加大,矿山的科学与持续发展成为当前面临的迫切问题,减少矿山井下水的排放，对矿井水进行综合处理利用,有效的保护了环境，节约了资源
The development of effective synthetic routes is important to manifest proper nature of specific materials,In-situ electrochemical functionalization possesses g
白庄煤矿通过强化能源计量管理，加强现场能源计量器具的配备管理,达到节能降耗、提高企业经济效益的目的。
Non-precious metal-nitrogen-carbon (MNC) electrocatalysts have gained tremendous attention as promising electrocatalysts for oxygen reduction reaction (ORR) and
The in situ growth of nano-array on material structure is a novel and high-efficient strategy to design catalysts,however,it still remains a challenge to fabric
Carbon dioxide (CO2) flooding is one of the most globally used EOR processes to enhance oil recovery.However,the low gas viscosity and density result in gas cha
MoS2/C composites are considered to have great application potential in sodium-ion batteries (SIBs).It is a challenging and meaningful subject that developing h
近年来，鄂庄煤矿深入贯彻落实科学发展观，把创建绿色矿山作为构建和谐矿区的重要举措来抓，坚持以环境树形象、以和谐促发展的工作思路，在全矿上下打响了一场生态战役，取得了显著成
本文以崖头煤矿为例，系统阐述了煤炭企业合理开发利用煤炭资源的具体做法，强调了综合利用资源和保护生态环境的重要性和必要性。