Rationally designed three-dimensional porous NiCo2N@C reticular structure for high-performance Li-ion batteries. (September 2020)

• Record Type: Journal Article
• Authors: Wang, Peiyao; Zhao, Bangchuan; Bai, Jin; Li, Kunzhen; Ma, Hongyang; Li, Wanyun; Zhu, Xuebin; Sun, Yuping
• Is Part Of: Scripta materialia. Number 186(2020)
• Page Start: 104
• Page End: 108
• Publication Date: 2020-09
• Subjects: NiCo2N@C -- Electrostatic spray deposition -- Lithium-ion batteries -- Anode -- Reticular structure; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2020.05.011
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Three-dimensional (3D) porous NiCo2 N@C composite was deposited on nickel foam substrate through the electrostatic spray deposition (ESD) technique followed by a post-annealing process under ammonia atmosphere. The prepared reticular-structured NiCo2 N@C film used as binder-free anode for lithium-ion batteries (LIBs) can exhibit excellent electrochemical performance. It delivers high initial discharge capacity of 1215.8 mAh g −1 at a current density of 1 A g −1 and can reach 1630.9 mAh g −1 after 400 cycles. The electrode also shows a superior rate capability with 955.4 mAh g −1 at 10 A g −1 current density. Graphical abstract: Image, graphical abstract