Journal
ADVANCED ENERGY MATERIALS
Volume 7, Issue 1, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201601507
Keywords
-
Categories
Funding
- UNIST (Ulsan National Institute of Science and Technology) [1.160033.01]
- IT R & D program of the Ministry of Trade, Industry & Energy/Korea Evaluation Institute of Industrial Technology (MOTIE/KEIT) [10046306]
- Commonwealth Government of Australia
- AutomotiveCRC
- Korea Evaluation Institute of Industrial Technology (KEIT) [10046306] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Ministry of Science & ICT (MSIT), Republic of Korea [2017BRAND] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Battery industries and research groups are further investigating LiCoO2 to unravel the capacity at high-voltages (>4.3 vs Li). The research trends are towards the surface modification of the LiCoO2 and stabilize it structurally and chemically. In this report, the recent progress in the surface-coating materials i.e., single-element, binary, and ternary hybrid-materials etc. and their coating methods are illustrated. Further, the importance of evaluating the surface-coated LiCoO2 in the Li-ion full-cell is highlighted with our recent results. Mg, P-coated LiCoO2 full-cells exhibit excellent thermal stability, high-temperature cycle and room-temperature rate capabilities with high energydensity of approximate to 1.4 W h cc(-1) at 10 C and 4.35 V. Besides, pouch-type full-cells with high-loading (18 mg cm(-2)) electrodes of layered-Li(Ni,Mn)O-2 -coated LiCoO2 not only deliver prolonged cycle-life at room and elevated-temperatures but also high energy-density of approximate to 2 W h cc(-1) after 100 cycles at 25 degrees C and 4.47 V (vs natural graphite). The post-mortem analyses and experimental results suggest enhanced electrochemical performances are attributed to the mechanistic behaviour of hybrid surface-coating layers that can mitigate undesirable side reactions and micro-crack formations on the surface of LiCoO2 at the adverse conditions. Hence, the surface-engineering of electrode materials could be a viable path to achieve the high-energy Li-ion cells for future applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available