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Jung, Yoon Seok
Electrochemical Solid-State Energy Storage Lab
Research Interests
  • Batteries, All-solid-state batteries, solid electrolytes, electrodes, atomic layer deposition,energy storage devices

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Extremely Durable High-Rate Capability of a LiNi0.4Mn0.4Co0.2O2 Cathode Enabled with Single-Walled Carbon Nanotubes

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Title
Extremely Durable High-Rate Capability of a LiNi0.4Mn0.4Co0.2O2 Cathode Enabled with Single-Walled Carbon Nanotubes
Author
Ban, ChunmeiLi, ZhengWu, ZhuangchunKirkham, Melanie J.Chen, LeJung, Yoon SeokPayzant, E. AndrewYan, YanfaWhittingham, M. StanleyDillon, Anne C.
Keywords
LITHIUM-ION BATTERIES; ATOMIC LAYER DEPOSITION; ELECTROCHEMICAL-BEHAVIOR; STORAGE CHARACTERISTICS; COMPOSITE ELECTRODES; CELLS; 0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-1/2; LI(NI1/3CO1/3MN1/3)O-2; INTERCALATION; PERFORMANCE
Issue Date
2011-01
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED ENERGY MATERIALS, v.1, no.1, pp.58 - 62
Abstract
A binder-free LiNi0.4Mn0.4Co0.2O2 cathode fabricated with 5 wt.% single-walled carbon nanotubes (SWNTS) shows excellent cycling performance at rates of 10C (Charge/discharge in 6 minutes). In contrast, a LiNi0.4Mn0.4Co0.2O2 electrode prepared by conventional methods without SWNTs has a significantly lower capacity. Based on the morphology and structural analysis, this exceptional rate capability is due to highly intimate contact between the long crystalline SWNT ropes and the active cathode material, ensuring fast diffusion of ions and electrons during cycling and resulting in sustainable capacity at high rates for 500 cycles.
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DOI
10.1002/aenm.201000001
ISSN
1614-6832
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ECHE_Journal Papers
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