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Cellulose‐Templated, Dual‐Carbonized Na 3 V 2 (PO 4 ) 3 for Energy Storage with High Rate Capability
Author(s) -
Sohn DongRak,
Ko Jong Wan,
Son Eun Jin,
Ko Sung Hyun,
Kim TaeHee,
Kwon HyukSang,
Park Chan Beum
Publication year - 2018
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201800642
Subject(s) - carbonization , energy storage , carboxymethyl cellulose , materials science , sodium , carbon fibers , sucrose , chemical engineering , cathode , cellulose , chemistry , organic chemistry , scanning electron microscope , composite material , power (physics) , physics , quantum mechanics , composite number , engineering , metallurgy
Sodium‐ion rechargeable batteries are a promising candidate for large‐scale electrical energy storage systems, owing to the abundance of sodium resources. Herein, we report the development of carbon‐incorporated NASICON‐Na 3 V 2 (PO 4 ) 3 (NVP) as an active cathode material for Na‐ion batteries, using carboxymethyl cellulose (CMC) and sucrose as dual carbon sources. The interaction between CMC and sucrose resulted in the formation of a highly porous structure (surface area: 58.998 m 2 g −1 ) with increased sp 2 carbon species, facilitating mass and charge transportation. The specific capacity (104.99 mAh g −1 ) of dual‐carbonized CMC/sucrose‐NVP (CS‐NVP) was close to the theoretical capacity (117.6 mAh g −1 ). Furthermore, dual‐carbonized NVP exhibited stable cyclability, showing a specific capacity of 75.04 mA g −1 even at a high rate of 20 C.