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Improvement of the Cycling Performance of LiNi0.6Co0.2Mn0.2O2 Cathode Active Materials by a Dual-Conductive Polymer Coating

Penulis : Seo Hee Ju [-]
Kontributor / Dosen Pembimbing :
  • Ik-Su Kang, Yoon-Sung Lee, Won-Kyung Shin, Saheum Kim, Kyomin Shin, Dong-Won Kim
Jenis Koleksi : Jurnal elektronik
Penerbit : Kimia
Fakultas : Fakultas Matematika dan Ilmu Pengetahuan Alam
Subjek : Chemistry
Kata Kunci : conductive polymer, surface modification, LiNi0.6Co0.2Mn0.2O2, protective coating, cycling performance
Sumber : www.acsami.org dx.doi.org/10.1021/am404965p | ACS Appl. Mater. Interfaces 2014, 6, 2546?2552
Staf Input/Edit : Latifa Noor  
File : 1 file
Tanggal Input : 21 Jun 2019

2019 EJRNL PP Seo Hee Ju 1.pdf?
PUBLIC Latifa Noor

LiNi0.6Co0.2Mn0.2O2 cathode materials were surface-modified by coating with a dual conductive poly(3,4-ethylenedioxythiophene)-co-poly(ethylene glycol) (PEDOT-co-PEG) copolymer, and their resulting electrochemical properties were investigated. The surface-modified LiNi0.6Co0.2Mn0.2O2 cathode material exhibited a high discharge capacity and good high rate performance due to enhanced transport of Li+ ions as well as electrons. The presence of a protective conducting polymer layer formed on the cathode also suppressed the growth of a resistive layer and inhibited the dissolution of transition metals from the active cathode materials, which resulted in more stable cycling characteristics than the pristine LiNi0.6Co0.2Mn0.2O2 cathode material at 55 o C.

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