Статья

Sieving carbons promise practical anodes with extensible low-potential plateaus for sodium batteries

Qi LiHaihe Laboratory of Sustainable Chemical Transformations , Tianjin 300192 , ChinaXiangsi LiuCollaborative Innovation Center of Chemistry for Energy MaterialsYing TaoHaihe Laboratory of Sustainable Chemical Transformations , Tianjin 300192 , ChinaJianxing HuangState Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005 , ChinaJun ZhangHaihe Laboratory of Sustainable Chemical Transformations , Tianjin 300192 , ChinaChunpeng YangHaihe Laboratory of Sustainable Chemical Transformations , Tianjin 300192 , ChinaYibo ZhangHaihe Laboratory of Sustainable Chemical Transformations , Tianjin 300192 , ChinaSiwei ZhangShenzhen Key Laboratory for Graphene-Based Materials, Engineering Laboratory for Functionalized Carbon Materials, Tsinghua Shenzhen International Graduate School, Tsinghua University , Shenzhen 518055 , ChinaYiran JiaHaihe Laboratory of Sustainable Chemical Transformations , Tianjin 300192 , ChinaQiaowei LinShenzhen Key Laboratory for Graphene-Based Materials, Engineering Laboratory for Functionalized Carbon Materials, Tsinghua Shenzhen International Graduate School, Tsinghua University , Shenzhen 518055 , ChinaYuxuan XiangState Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005 , ChinaJun ChengState Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005 , ChinaWei LvShenzhen Key Laboratory for Graphene-Based Materials, Engineering Laboratory for Functionalized Carbon Materials, Tsinghua Shenzhen International Graduate School, Tsinghua University , Shenzhen 518055 , ChinaFeiyu KangShenzhen Key Laboratory for Graphene-Based Materials, Engineering Laboratory for Functionalized Carbon Materials, Tsinghua Shenzhen International Graduate School, Tsinghua University , Shenzhen 518055 , ChinaYong YangState Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005 , ChinaQuan‐Hong YangHaihe Laboratory of Sustainable Chemical Transformations , Tianjin 300192 , China

2022en

ABI

Аннотация

Abstract Non-graphitic carbons are promising anode candidates for sodium-ion batteries, while their variable and complicated microstructure severely limits the rational design of high-energy carbon anodes that could accelerate the commercialization of sodium-ion batteries, as is the case for graphite in lithium-ion batteries. Here, we propose sieving carbons, featuring highly tunable nanopores with tightened pore entrances, as high-energy anodes with extensible and reversible low-potential plateaus (&lt;0.1 V). It is shown that the tightened pore entrance blocks the formation of the solid electrolyte interphase inside the nanopores and enables sodium clustering to produce the plateau. Theoretical and spectroscopic studies also show that creating a larger area of sodiophilic pore surface leads to an almost linearly increased number of sodium clusters, and controlling the pore body diameter guarantees the reversibility of sodium cluster formation, producing a sieving carbon anode with a record-high plateau capacity of 400 mAh g–1. More excitingly, this approach to preparing sieving carbons has the potential to be scalable for modifying different commercial porous carbons.

Перевод пока недоступен

Идентификаторы

DOI: 10.1093/nsr/nwac084

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar