Preparation and electrochemical investigation of single-crystal LiNi 0.6 Co 0.2 Mn 0.2 O 2 for high-performance lithium-ion batteries
Ni-rich layered cathode materials have large reversible capacity. However, they suffer from the cracking of the spherical particles, low Coulombic efficiency and fast capacity decay during cycling. Preparing a single-crystal Ni-rich cathode is a promising method to solve this problem due to its exce...
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Veröffentlicht in: | New journal of chemistry 2022-03, Vol.46 (10), p.4877-4883 |
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container_title | New journal of chemistry |
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creator | Tian, Rong-Zheng Wang, Ze-Xin Wang, Xiao-Qing Zhang, Hong-Zhou Ma, Yue Song, Da-Wei Shi, Xi-Xi Zhang, Lian-Qi |
description | Ni-rich layered cathode materials have large reversible capacity. However, they suffer from the cracking of the spherical particles, low Coulombic efficiency and fast capacity decay during cycling. Preparing a single-crystal Ni-rich cathode is a promising method to solve this problem due to its excellent structural stability. However, the morphology and electrochemical performance of single-crystal Ni-rich cathodes depend largely on the particle size and morphology of the hydroxide precursors. In this work, a suitable hydroxide precursor to synthesise single-crystal NCM622 with great dispersity and remarkable electrochemical performance is explored. Besides, the influence of grain size on the structural and thermal stability of the Ni-rich cathode material is further investigated. This work provides a reference to synthesize single-crystal Ni-rich cathodes with high electrochemical performance for lithium-ion batteries of the next generation. |
doi_str_mv | 10.1039/D1NJ05359K |
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However, they suffer from the cracking of the spherical particles, low Coulombic efficiency and fast capacity decay during cycling. Preparing a single-crystal Ni-rich cathode is a promising method to solve this problem due to its excellent structural stability. However, the morphology and electrochemical performance of single-crystal Ni-rich cathodes depend largely on the particle size and morphology of the hydroxide precursors. In this work, a suitable hydroxide precursor to synthesise single-crystal NCM622 with great dispersity and remarkable electrochemical performance is explored. Besides, the influence of grain size on the structural and thermal stability of the Ni-rich cathode material is further investigated. This work provides a reference to synthesize single-crystal Ni-rich cathodes with high electrochemical performance for lithium-ion batteries of the next generation.</description><identifier>ISSN: 1144-0546</identifier><identifier>EISSN: 1369-9261</identifier><identifier>DOI: 10.1039/D1NJ05359K</identifier><language>eng</language><ispartof>New journal of chemistry, 2022-03, Vol.46 (10), p.4877-4883</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c76K-ab05cbec21df8d1c1c28b46259d8572f829f21aa6c9e86f712373f6e82bdc0ce3</citedby><cites>FETCH-LOGICAL-c76K-ab05cbec21df8d1c1c28b46259d8572f829f21aa6c9e86f712373f6e82bdc0ce3</cites><orcidid>0000-0002-5375-2359 ; 0000-0003-2165-7995</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Tian, Rong-Zheng</creatorcontrib><creatorcontrib>Wang, Ze-Xin</creatorcontrib><creatorcontrib>Wang, Xiao-Qing</creatorcontrib><creatorcontrib>Zhang, Hong-Zhou</creatorcontrib><creatorcontrib>Ma, Yue</creatorcontrib><creatorcontrib>Song, Da-Wei</creatorcontrib><creatorcontrib>Shi, Xi-Xi</creatorcontrib><creatorcontrib>Zhang, Lian-Qi</creatorcontrib><title>Preparation and electrochemical investigation of single-crystal LiNi 0.6 Co 0.2 Mn 0.2 O 2 for high-performance lithium-ion batteries</title><title>New journal of chemistry</title><description>Ni-rich layered cathode materials have large reversible capacity. However, they suffer from the cracking of the spherical particles, low Coulombic efficiency and fast capacity decay during cycling. Preparing a single-crystal Ni-rich cathode is a promising method to solve this problem due to its excellent structural stability. However, the morphology and electrochemical performance of single-crystal Ni-rich cathodes depend largely on the particle size and morphology of the hydroxide precursors. In this work, a suitable hydroxide precursor to synthesise single-crystal NCM622 with great dispersity and remarkable electrochemical performance is explored. Besides, the influence of grain size on the structural and thermal stability of the Ni-rich cathode material is further investigated. 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However, they suffer from the cracking of the spherical particles, low Coulombic efficiency and fast capacity decay during cycling. Preparing a single-crystal Ni-rich cathode is a promising method to solve this problem due to its excellent structural stability. However, the morphology and electrochemical performance of single-crystal Ni-rich cathodes depend largely on the particle size and morphology of the hydroxide precursors. In this work, a suitable hydroxide precursor to synthesise single-crystal NCM622 with great dispersity and remarkable electrochemical performance is explored. Besides, the influence of grain size on the structural and thermal stability of the Ni-rich cathode material is further investigated. 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title | Preparation and electrochemical investigation of single-crystal LiNi 0.6 Co 0.2 Mn 0.2 O 2 for high-performance lithium-ion batteries |
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