New Battery with Borides as Both Anode and Cathode Materials

Abstract

Transition metal borides Co–B and Co–Ni–B are prepared by a simple chemical reduction method and used to construct a new all-boride aqueous solution battery with borides used for both the anode and cathode. This all-boride-based battery exhibits an excellent electrochemical property and extreme frost tolerance. The results of the electrochemical performance test demonstrate that the specific capacity of this all-boride battery reaches 332.4 mA h g–1 at a current density of 500 mA g–1 and is maintained at 280 mAh g–1 with a high discharge current density of 8 A g–1 as a result of the rapid electrochemical reaction kinetics and high electronic conductivity. This all-boride battery can continue to work at low temperatures (−40 °C) and exhibits good electrochemical performance; therefore, it can be used under extreme cold weather conditions. The electrode material of the all-boride battery is simple to prepare, is energy-saving, does not require special equipment or a special environment during assembly, and thus shows promise as a new energy storage device.

Review and Perspectives of Electrochemical Energy Conversion and Storage in Metal Diborides and XBenes

“…166 Recently, Yi and co-workers reported a new all-boride aqueous solution battery with Co−B and Co−Ni−B borides used for both the anode and cathode, which exhibited a specific capacity of 332.4 mA h/g at a current density of 500 mA/g. 165 According to their findings, this all-boride-based battery showed excellent electrochemical performance and is capable of operating at extremely low temperatures (−40 °C). In another study, HfB 2 was explored as a catalyst for the V 3+ /V 2+ redox flow battery.…”

“…Their results reveal exceptional specific capacity, with VB 2 demonstrating the highest specific capacity (3336.4 mAh/g) and anode efficiency (82.18%) among the tested materials . Recently, Yi and co-workers reported a new all-boride aqueous solution battery with Co–B and Co–Ni–B borides used for both the anode and cathode, which exhibited a specific capacity of 332.4 mA h/g at a current density of 500 mA/g . According to their findings, this all-boride-based battery showed excellent electrochemical performance and is capable of operating at extremely low temperatures (−40 °C).…”

“…In another study, a metal–air battery based on VB 2 as an electrode material was reported that involves 11-electron transfer in the oxidation reaction with a theoretical specific capacity of 4060 mAh/g . Many diborides such as TaB 2 , HfB 2 and FeB 2 have been utilized in their bulk form owing to abundant electron defect sites and strong electron acceptance ability, which enhances the ion diffusion rate and promotes electrochemical kinetics for energy storage applications. ,,,− The use of other metal diborides, including VB 2 , MoB 2 , TiB 2 , and MgB 2 , as active materials for battery anodes was studied in a 6 M KOH solution for the design of metal boride–air batteries. Their results reveal exceptional specific capacity, with VB 2 demonstrating the highest specific capacity (3336.4 mAh/g) and anode efficiency (82.18%) among the tested materials .…”

Recent Advances and Future Perspectives of Fiber-Shaped Batteries

“…This is mainly attributed to the 1D fiber structure and the limited freedom of multicomponents. Moreover, most laboratory investigations only focus at the centimeter scale; large-scale manufacturing of fiber electrodes and FSBs with low cost and high throughput is still a limitation currently. , (v) Encapsulation issues: Different from planar batteries, the encapsulation process of FSBs is much more challenging with high curvature interfaces. Polymeric materials [for instance, heat-shrinkable tubes and polyethylene terephthalate (PET) thin films], are commonly used as encapsulation layers, but they can hardly insulate from moisture and oxygen.…”

Self-powered NH3 synthesis by trifunctional Co2B-based high power density Zn–air batteries

“…24 In the past decade, extensive efforts have been devoted to developing precious metal free oxygen bifunctional catalysts, [42][43][44][45][46] including transition-metal oxides/hydroxides, sulphides, carbides, carbonaceous materials, molecular catalysts, nitrides, and phosphides. [47][48][49][50] Transition metal borides (TMBs) have begun to appear as an important inorganic class of materials with wide-spread applications in various elds, such as energy storage, 51,52 energy conversion, 53 superconductivity, and thermoelectricity. 54 TMBs, including cobalt and nickel, have been generally used in electrocatalysis because of their enhanced electrical conductivity, stability and hardness.…”