Effect of yttrium on low temperature toughness of weld metal deposited by TiO2-CaO type electrode has been investigated by transfering yttrium from welding pool to weld with fluxcored wire.The results show that the de...Effect of yttrium on low temperature toughness of weld metal deposited by TiO2-CaO type electrode has been investigated by transfering yttrium from welding pool to weld with fluxcored wire.The results show that the decrease in surface tension of liquid iron in welding pool and the variation in density of inclusion in weld are main causes for toughness improvement effect on weld by yttrium.展开更多
A new type of all-solid-state Ag/AgCl reference electrode was constructed by using urea-formaldehyde resin as the frame material and KCl powder as the active component. The properties of the electrode were studied in ...A new type of all-solid-state Ag/AgCl reference electrode was constructed by using urea-formaldehyde resin as the frame material and KCl powder as the active component. The properties of the electrode were studied in detail. The electrode exhibited excellent characteristics and could be applied to the electrochemical measurements in syrupy, colloidal and higher temperature solutions as a reference electrode.展开更多
Seawater batteries are attracting continuous attention because seawater as an electrolyte is inexhaustible,eco-friendly,and free of charge.However,the rechargeable seawater batteries developed nowadays show poor rever...Seawater batteries are attracting continuous attention because seawater as an electrolyte is inexhaustible,eco-friendly,and free of charge.However,the rechargeable seawater batteries developed nowadays show poor reversibility and short cycle life,due to the very limited electrode materials and complicated yet inappropriate working mechanism.Here,we propose a rechargeable seawater battery that works through a rocking-chair mechanism encountered in commercial lithium ion batteries,enabled by intercalation-type inorganic electrode materials of open-framework-type cathode and Na-ion conducting membrane-type anode.The rechargeable seawater battery achieves a high specific energy of 80.0 Wh/kg at 1,226.9 W/kg and a high specific power of 7,495.0 W/kg at 23.7 Wh/kg.Additionally,it exhibits excellent cycling stability,retaining 66.3%of its capacity over 1,000 cycles.This work represents a promising avenue for developing sustainable aqueous batteries withlow costs.展开更多
文摘Effect of yttrium on low temperature toughness of weld metal deposited by TiO2-CaO type electrode has been investigated by transfering yttrium from welding pool to weld with fluxcored wire.The results show that the decrease in surface tension of liquid iron in welding pool and the variation in density of inclusion in weld are main causes for toughness improvement effect on weld by yttrium.
文摘A new type of all-solid-state Ag/AgCl reference electrode was constructed by using urea-formaldehyde resin as the frame material and KCl powder as the active component. The properties of the electrode were studied in detail. The electrode exhibited excellent characteristics and could be applied to the electrochemical measurements in syrupy, colloidal and higher temperature solutions as a reference electrode.
基金supported by the Hainan Province Science and Technology Special Fund(No.ZDYF20-23GXJS148)the National Natural Science Foundation of China(No.52362030).
文摘Seawater batteries are attracting continuous attention because seawater as an electrolyte is inexhaustible,eco-friendly,and free of charge.However,the rechargeable seawater batteries developed nowadays show poor reversibility and short cycle life,due to the very limited electrode materials and complicated yet inappropriate working mechanism.Here,we propose a rechargeable seawater battery that works through a rocking-chair mechanism encountered in commercial lithium ion batteries,enabled by intercalation-type inorganic electrode materials of open-framework-type cathode and Na-ion conducting membrane-type anode.The rechargeable seawater battery achieves a high specific energy of 80.0 Wh/kg at 1,226.9 W/kg and a high specific power of 7,495.0 W/kg at 23.7 Wh/kg.Additionally,it exhibits excellent cycling stability,retaining 66.3%of its capacity over 1,000 cycles.This work represents a promising avenue for developing sustainable aqueous batteries withlow costs.
