Abstract
Lithium-nickel-manganese-cobalt oxide (LiNixCoyMnzO2) (NCM) has a high specific capacity and is used as a cathode material for Li-ion batteries. However, the poor cycling stability associated with NCM-based cathode composites imposes a challenge for achieving stable cycling performance. Here, we report the use of a conducting polymer as a binder to yield a stable NCM-based cathode composite. Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) was successfully used with a NCM cathode material, resulting in many advantages, such as improved electrical conductivity within the electrode and strong adhesion of the electrode composite on the current collector. With PEDOT:PSS binder, the NCM-based cathodes showed stable cycling performance and an improved capacity retention of ~85% after 100 cycles at 45°C.
Original language | English |
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Pages (from-to) | 84-88 |
Number of pages | 5 |
Journal | Science of Advanced Materials |
Volume | 8 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2016 Jan 1 |
Keywords
- Cathode composite
- Conducting polymer binder
- Lithium-ion battery
- Lithium-nickel-manganese-cobalt oxide
- Poly(3,4-ethylenedioxythiophene)
ASJC Scopus subject areas
- Materials Science(all)