Asset Details
Do you wish to reserve the book?
Vanadium‐modified hard carbon spheres with sufficient pseudographitic domains as high‐performance anode for sodium‐ion batteries
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Vanadium‐modified hard carbon spheres with sufficient pseudographitic domains as high‐performance anode for sodium‐ion batteries
Do you wish to request the book?
Vanadium‐modified hard carbon spheres with sufficient pseudographitic domains as high‐performance anode for sodium‐ion batteries
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Vanadium‐modified hard carbon spheres with sufficient pseudographitic domains as high‐performance anode for sodium‐ion batteries
2023
Overview
Hard carbons are promising anode materials for sodium‐ion batteries. To meet practical requirements, searching for durable and conductive carbon with a stable interface is of great importance. Here, we prepare a series of vanadium‐modified hard carbon submicrospheres by using hydrothermal carbonization followed by high‐temperature pyrolysis. Significantly, the introduction of vanadium can facilitate the nucleation and uniform growth of carbon spheres and generate abundant V–O–C interface bonds, thus optimizing the reaction kinetic. Meanwhile, the optimized hard carbon spheres modified by vanadium carbide, with sufficient pseudographitic domains, provide more active sites for Na ion migration and storage. As a result, the HC/VC‐1300 electrode exhibits excellent Na storage performance, including a high capacity of 420 mAh g−1 at 50 mA g−1 and good rate capability at 1 A g−1. This study proposes a new strategy for the synthesis of hard carbon spheres with high tap density and emphasizes the key role of pseudographitic structure for Na storage and interface stabilization. The HC/VC materials were synthesized by using hydrothermal carbonization followed by high‐temperature pyrolysis. The HC/VC‐1300 material has abundant V–O–C interface bonds and sufficient pseudographitic domains to provide more active sites for Na ion migration and storage, optimizing the reaction kinetics, resulting in good structural stability and excellent Na storage properties.
