The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
Cobalt‐Free High‐Capacity Ni‐Rich Layered Li[Ni0.9Mn0.1]O2 Cathode
Abstract
Li[Ni 0.9 Co 0.1]O 2 (NC90), Li[Ni 0.9 Co 0.05 Mn 0.05]O 2 (NCM90), and Li[Ni 0.9 Mn 0.1]O 2 (NM90) cathodes are synthesized for the development of a Co‐free high‐energy‐density cathode. NM90 maintains better cycling stability than the two Co‐containing cathodes, particularly under harsh cycling conditions (a discharge capacity of 236 mAh g−1 with a capacity retention of 88% when cycled at 4.4 V under 30 °C and 93% retention when cycled at 4.3 V under 60 °C after 100 cycles). The reason for the enhanced stability is mainly the ability of NM90 to absorb the strain associated with the abrupt anisotropic lattice contraction/extraction and to suppress the formation of microcracks, in addition to enhanced chemical stability from the increased presence of stable Mn 4+. Although the absence of Co deteriorates the rate capability, this can be overcome as the rate capability of the NM90 approaches that of the NCM90 when cycled at 60 °C. The long‐term cycling stability of NM90 is confirmed in a full cell, demonstrating that it is one of the most promising Co‐free cathodes for high‐energy‐density applications. This study not only provides insight into redefining the role of Mn in a Ni‐rich cathode, it also represents a clear breakthrough in achieving a commercially viable Co‐free Ni‐rich layered cathode.
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Cited by
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Self-citationLithium-ion batteries for low-temperature applications: Limiting factors and solutions
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Metadata
- Authors
- Aishova, A., Park, G., Yoon, C. S., & Sun, Y.
- Venue
- Advanced Energy Materials
- Publisher
- Wiley
- Published
- 2019-12-10
- Volume
- 10
- Issue
- 4
- ISSN
- 1614-6832 (ISSN-L)
- 1614-6840
- OpenAlex
- W2995668658
- Cited by
- 269
- References
- 31
- FWCI
- 8.19
- Type
- journal article
- Language
- en
- Open access
- closed
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- Aishova, A., Park, G., Yoon, C. S., & Sun, Y. (2020). Cobalt‐Free High‐Capacity Ni‐Rich Layered Li[Ni0.9Mn0.1]O2 Cathode. Advanced Energy Materials. https://doi.org/10.1002/aenm.201903179
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