Tubular Polypyrrole with Chloride Ion Dopants as an Ultrafast Organic Anode for High-Power Lithium-Ion Batteries.
ChemSusChem
; 16(11): e202202174, 2023 Jun 09.
Article
em En
| MEDLINE
| ID: mdl-36877185
ABSTRACT
Polypyrrole (PPy), as a representative p-type conductive polymer, attracts wide attention for energy storage materials. However, the sluggish reaction kinetics and low specific capacity of PPy impede its application in high-power lithium-ion batteries (LIBs). Herein, tubular PPy with chloride and methyl orange (MO) anionic dopants is synthesized and investigated as an anode for LIBs. The Cl- and MO anionic dopants can increase the ordered aggregation and the conjugation length of pyrrolic chains, forming plentiful conductive domains and affecting the conduction channel inside the pyrrolic matrix, thereby achieving fast charge transfer and Li+ ion diffusion, low ion transfer energy barriers, and rapid reaction kinetics. On account of the above synergistic effect, PPy electrodes deliver a high specific capacity of 2067.8â
mAh g-1 at 200â
mA g-1 and a remarkable rate capacity of 1026â
mAh g-1 at 10â
A g-1 , realizing high energy density (724â
Wh kg-1 ) and power density (7237â
W kg-1 ) simultaneously.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cloretos
/
Lítio
Idioma:
En
Revista:
ChemSusChem
Assunto da revista:
QUIMICA
/
TOXICOLOGIA
Ano de publicação:
2023
Tipo de documento:
Article
País de publicação:
ALEMANHA
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ALEMANIA
/
DE
/
DEUSTCHLAND
/
GERMANY