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

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

doi:10.1016/j.scriptamat.2020.07.032

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

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

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13

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13

초록

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. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

키워드

Nickel hydroxide; hollow carbon nanospheres; in-situ precipitation; anode materials; lithium-ion batteries; COMPOSITE MICROSPHERES; ANODE MATERIALS; HIGH-CAPACITY; SHELL; NANOSTRUCTURES; CO(OH)(2); BATTERIES; FOAM

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

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

DOI: 10.1016/j.scriptamat.2020.07.032

발행일: 2020-11

유형: Article

저널명: Scripta Materialia

권: 188

페이지: 112 ~ 117