Suppression of structural degradation of LiNi0.9Co0.1O2 cathode at 90 degrees C by AlPO4-nanoparticle coating
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- Suppression of structural degradation of LiNi0.9Co0.1O2 cathode at 90 degrees C by AlPO4-nanoparticle coating
- Ahn, Donggi; Lee, Joon-Gon; Lee, Jin Sun; Kim, Jisuk; Cho, Jaephil; Park, Byungwoo
- AlPO4-nanoparticle; Coating; LiNi0.9Co0.1O2
- Issue Date
- ELSEVIER SCIENCE BV
- CURRENT APPLIED PHYSICS, v.7, no.2, pp.172 - 175
- This study examined the electrochemical and structural stability of ∼1.5 wt.% AlPO4-coated LiNi0.9Co0.1O2. The AlPO4-coated LiNi0.9Co0.1O2 retained ∼60% of the original capacity after 50 cycles, compared with the ∼30% capacity retention of the bare LiNi0.9Co0.1O2. The discharge profiles and cyclic voltammograms from 4.5 V at 90 °C for 4 h showed enhanced structural stability. Scanning electron microscopy and X-ray diffraction revealed that the AlPO4-coated LiNi0.9Co0.1O2 had less degradation than the bare LiNi0.9Co0.1O2.
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