Reappraisal of hard carbon anodes for practical lithium/sodium-ion batteries from the perspective of full-cell matters

Abstract

Hard carbon (HC) has the potential to be a viable commercial anode material in both lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). However, current battery performance evaluation methods based on...

Nanoconfinement of ultra-small Bi2Te3 nanocrystals on reduced graphene oxide: a pathway to high-performance sodium-ion battery anodes

“…In recent years, there has been significant emphasis on the development of efficient anode substances to increase the capacity of sodium-ion batteries. 7,8 Due to their high theoretical conversion capacity, sulfides, selenides, and metal oxides have gained considerable attention among alternative materials. 9,10 Compared with sulfides and oxides, metal tellurides (MTs) exhibit enhanced electrical conductivity and electrochemical activity, 9,11 making them promising candidates as anode materials for SIBs.…”

Hard carbon for sodium-ion batteries: progress, strategies and future perspective

“…1a and b). [8][9][10] However, the properties, cost, performance and reliability of SIBs largely rely on their electrode materials, and thus, the preparation of highperformance electrode materials holds immense scientic and practical signicance (Fig. 1c).…”

Regulating the Pore Structure of Activated Carbon by Pitch for High-Performance Sodium-Ion Storage

“…In recent years, the widespread use of lithium-ion batteries (LIBs) has raised concerns about the depletion of lithium resources. Abundant reserves of sodium and potassium have great potential for large-scale energy storage applications. , In particular, sodium-ion batteries (SIBs) are ideal alternatives to LIBs due to their low cost and high safety. , In terms of cost, performance, and resource sustainability, disordered carbon materials have been proven to be the most favorable option among anode materials. , Typically, disordered carbon materials consist of numerous disordered, stacked, and bent graphene sheets, with the sheet layers containing a high number of defects, and the bent graphene sheets stacked to form closed pores . Previous studies have elucidated that the created closed pores in anode materials provide abundant room for the storage of sodium ions. , This ‘pore-filling’ mechanism makes the capacity under low potential 50 to 80% of the total capacity in SIBs. , This means that the microstructure of disordered carbon, specifically the design of pores, is an effective way to expand the low-potential platform and enhance the performance of sodium-ion storage.…”

“…3,4 In terms of cost, performance, and resource sustainability, disordered carbon materials have been proven to be the most favorable option among anode materials. 5,6 Typically, disordered carbon materials consist of numerous disordered, stacked, and bent graphene sheets, with the sheet layers containing a high number of defects, and the bent graphene sheets stacked to form closed pores. 7 Previous studies have elucidated that the created closed pores in anode materials provide abundant room for the storage of sodium ions.…”