A kind of new long life aluminum air batteries with open configuration was developed, using aluminum alloy doped with Ga, In, Sn, Bi, Pb and Mn as anode, NaCl solution as electrolyte and air electrode as cathode. The ...A kind of new long life aluminum air batteries with open configuration was developed, using aluminum alloy doped with Ga, In, Sn, Bi, Pb and Mn as anode, NaCl solution as electrolyte and air electrode as cathode. The polarization curves of aluminum electrode and air electrode were tested. And the cell′s performance was tested to calculate the utilization of aluminum electrode and the energy density. It is shown that, in the 3.5% NaCl solution, the cell can discharge at 0.29 A for 140 h with the working voltage keeping over 1.1 V. The utilization ratio of aluminum anode is over 44%, and the life of battery is longer than 2400 h.展开更多
In this viewpoint,recent hot topics in the photovoltaic community,interdigitated back contact(IBC)cells,are systematically reviewed from the view of device configuration.Two categories of IBC designs on the most popul...In this viewpoint,recent hot topics in the photovoltaic community,interdigitated back contact(IBC)cells,are systematically reviewed from the view of device configuration.Two categories of IBC designs on the most popular perovskite solar cells(PSCs)were discussed,and a planar back-contact perovskite module was first proposed.The device configuration,fabrication methods,working mechanism,optimization strategies,and future development directions of this novel PSC module were put forward to show its superiorities in the module performance,processing difficulty,and extensible functionality among present perovskite modules,presenting promising potential to improve the competitiveness of perovskite technology in the photovoltaic market.展开更多
Electrocatalytic CO2 reduction (ECR) into value-added chemicals offers potential solution for renewable energy as well as global carbon footprint concerns. In this review we introduce the general methods and metrics t...Electrocatalytic CO2 reduction (ECR) into value-added chemicals offers potential solution for renewable energy as well as global carbon footprint concerns. In this review we introduce the general methods and metrics that are commonly applied in ECR, followed by a discussion of current reaction mechanisms and different pathways. We highlight how size and structure of electrocatalysts affect ECR performance and review recent advances in metalfree and single-atom catalysts. The challenges of ECR are also discussed and optimistic perspectives are made for future work.展开更多
Various busbar configurations were built and modeled by the custom code based on the commercial package ANSYS for the 500 kA aluminum electrolysis cell.The configuration parameters,such as side riser entry ratio,numbe...Various busbar configurations were built and modeled by the custom code based on the commercial package ANSYS for the 500 kA aluminum electrolysis cell.The configuration parameters,such as side riser entry ratio,number of cathode bars connected to each riser,vertical location of side cathode busbar and short side cathode busbar,distance between rows of cells in potline,the number of neighboring cells,ratio of compensation busbar carried passing under cell and its horizontal location under cell along with large magnetohydrodynamic(MHD) computation based on the custom evaluation function were simulated and discussed.The results show that a cell with riser entry ratio of 11:9:8:9:11 and cathode busbar located at the level of aluminum solution,50% upstream cathode current passing under cell for magnetic field compensation,the distance between rows of 50 m is more stable.展开更多
基金This work was financially supported by the Doctor Foundation of Hebei Province (045472226D-1).
文摘A kind of new long life aluminum air batteries with open configuration was developed, using aluminum alloy doped with Ga, In, Sn, Bi, Pb and Mn as anode, NaCl solution as electrolyte and air electrode as cathode. The polarization curves of aluminum electrode and air electrode were tested. And the cell′s performance was tested to calculate the utilization of aluminum electrode and the energy density. It is shown that, in the 3.5% NaCl solution, the cell can discharge at 0.29 A for 140 h with the working voltage keeping over 1.1 V. The utilization ratio of aluminum anode is over 44%, and the life of battery is longer than 2400 h.
基金China Postdoctoral Science Foundation(2023M731476,2023T160286)Beijing Postdoctoral Research Foundation.
文摘In this viewpoint,recent hot topics in the photovoltaic community,interdigitated back contact(IBC)cells,are systematically reviewed from the view of device configuration.Two categories of IBC designs on the most popular perovskite solar cells(PSCs)were discussed,and a planar back-contact perovskite module was first proposed.The device configuration,fabrication methods,working mechanism,optimization strategies,and future development directions of this novel PSC module were put forward to show its superiorities in the module performance,processing difficulty,and extensible functionality among present perovskite modules,presenting promising potential to improve the competitiveness of perovskite technology in the photovoltaic market.
基金National Natural Science Foundation of China (Grant No. 51773092)National Natural Science Foundation of China (21825202, 21575135, 21733012, 21633008, 21605136)+3 种基金Research Fundation of State Key Lab (ZK201717)the support from Department of Education of Jilin Province (JJKH20190767KJ)Department of Education of Guangdong Province (2017KCXTD031)Science Foundation for High-level Talents of Wuyi University (2017RC23)
文摘Electrocatalytic CO2 reduction (ECR) into value-added chemicals offers potential solution for renewable energy as well as global carbon footprint concerns. In this review we introduce the general methods and metrics that are commonly applied in ECR, followed by a discussion of current reaction mechanisms and different pathways. We highlight how size and structure of electrocatalysts affect ECR performance and review recent advances in metalfree and single-atom catalysts. The challenges of ECR are also discussed and optimistic perspectives are made for future work.
基金Project(20010533009) supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China
文摘Various busbar configurations were built and modeled by the custom code based on the commercial package ANSYS for the 500 kA aluminum electrolysis cell.The configuration parameters,such as side riser entry ratio,number of cathode bars connected to each riser,vertical location of side cathode busbar and short side cathode busbar,distance between rows of cells in potline,the number of neighboring cells,ratio of compensation busbar carried passing under cell and its horizontal location under cell along with large magnetohydrodynamic(MHD) computation based on the custom evaluation function were simulated and discussed.The results show that a cell with riser entry ratio of 11:9:8:9:11 and cathode busbar located at the level of aluminum solution,50% upstream cathode current passing under cell for magnetic field compensation,the distance between rows of 50 m is more stable.
