Journal
NANO ENERGY
Volume 64, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2019.103986
Keywords
Flexible battery; All-solid-state battery; LiNi(0.4)Co(0.2)Mu(0.4)O(2); LiNi(0.6)Co0.2Mn(0.2)O(2); Lithium metal polymer batteries
Categories
Funding
- Ministry of Education (MOE) of Singapore through AcRF Tier 1 [RG195/17]
- Ministry of Education (MOE) of Singapore through AcRF Tier 3 [MOE2016-T3-1-006]
- German Federal Ministry of Education and Research (BMBF) within the FestBatt project [03XP0175B]
- Helmholtz Association
- European Union within the project MARS-EV [609201]
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Lithium metal polymer batteries have attracted extensive interest spurred by the pursuit of high safety as well as high-energy power sources. In this work, we report, a flexible, all-solid-state lithium metal polymer battery composed of the 4V-class, LiNi1-xCo0.2Mn0.2 cathode, lithium anode and PEO10-LiTESI-PYR14TESI2 ternary solid polymer electrolyte. Compared with LiNi0.4Co0.2Mn0.4O2, the Ni-rich LiNi0.6Co0.2Mn0.2O2 cathode composite showed considerably more stable cycling performance and C-rate capability, as a result of the more homogeneous particle distribution that provides better electronic and ionic conductivity, and, most important, more stable interfacial impedance with smaller values upon cycling resulting from the formation of quickly stabilized SEI and the significantly alleviated phase transitions. Through the systematic investigation, this work herein provides a valid assessment of the potential use of 4V-class Ni-rich NCM for practical lithium metal polymer batteries.
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