Efficient strategy for hollow carbon nanospheres embedded with nickel hydroxide nanocrystals and their excellent lithium-ion storage performances

Jeong Hoo Hong, Gi Dae Park, Su Hyun Yang, Jae Hun Choi, Yun Chan Kang

Research output: Contribution to journalArticle

Abstract

In this study, an efficient supporting matrix for metal hydroxide, carbon hollow nanospheres are firstly applied for the synthesis of anode materials for lithium-ion batteries. Metal salt is infiltrated within the mesopores of carbon nanospheres, and then transforms into ultrafine metal hydroxide by in-situ precipitation. Immediate conversion reaction occurs between the ammonia solution and metal salt in liquid state to form ultrafine metal hydroxide. Hollow carbon nanospheres containing ultrafine Ni(OH)2 nanocrystals within the shell exhibit high structural stability during repetitive conversion reactions with Li-ions, as well as superior cycling and rate performances when comparing to those of bare Ni(OH)2 nanopowders.

Original languageEnglish
Pages (from-to)112-117
Number of pages6
JournalScripta Materialia
Volume188
DOIs
Publication statusPublished - 2020 Nov

Keywords

  • anode materials
  • hollow carbon nanospheres
  • in-situ precipitation
  • lithium-ion batteries
  • Nickel hydroxide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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