Improved electrochemical performances of LiNi0.8Co0.1Mn0.1O2 cathode via SiO2 coating
Surface-modified LiNi0.8Co0.1Mn0.1O2 cathode with different coating amounts of SiO2 (0.25–1 wt%) is successfully synthesized and its electrochemical performances are investigated. Compared to bare LiNi0.8Co0.1Mn0.1O2, the 0.25 wt% SiO2 coated LiNi0.8Co0.1Mn0.1O2 delivers an initial capacity of 200.7...
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| Veröffentlicht in: | Journal of alloys and compounds 2019-06, Vol.791, p.193-199 |
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| creator | Lee, Seung-Hwan Park, Gum-Jae Sim, Seoung-Ju Jin, Bong-Soo Kim, Hyun-Soo |
| description | Surface-modified LiNi0.8Co0.1Mn0.1O2 cathode with different coating amounts of SiO2 (0.25–1 wt%) is successfully synthesized and its electrochemical performances are investigated. Compared to bare LiNi0.8Co0.1Mn0.1O2, the 0.25 wt% SiO2 coated LiNi0.8Co0.1Mn0.1O2 delivers an initial capacity of 200.7 mAh g−1 as well as the excellent cyclability (capacity retention of 87.3% after 100 cycles at 0.5C) and rate capability (82.2% at 2C). Furthermore, 0.25 wt% SiO2 coated LiNi0.8Co0.1Mn0.1O2 exhibits the stable cycle performance at 55 °C (84.5% after 100 cycles at 0.5C). Such improvements are attributed to the SiO2 coating, which can suppress the irreversible phase transformation and play a role in obstacle to protect the LiNi0.8Co0.1Mn0.1O2 from electrolyte.
•SiO2 coating was prepared with high crystallinity.•SiO2 coating has a discharge capacity of 200.7 mAh g−1.•SiO2 coating shows a rate capability of 82.2% at 2C.•SiO2 coating shows a stable cyclability of 84.5%, after 100 cycles. |
| doi_str_mv | 10.1016/j.jallcom.2019.03.308 |
| format | Article |
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•SiO2 coating was prepared with high crystallinity.•SiO2 coating has a discharge capacity of 200.7 mAh g−1.•SiO2 coating shows a rate capability of 82.2% at 2C.•SiO2 coating shows a stable cyclability of 84.5%, after 100 cycles.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2019.03.308</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Cathodes ; Cathodic coating (process) ; Cyclability ; Performance enhancement ; Phase transitions ; Protective coatings ; Rate capability ; Silicon dioxide ; SiO2 coating ; Surface-modified LiNi0.8Co0.1Mn0.1O2</subject><ispartof>Journal of alloys and compounds, 2019-06, Vol.791, p.193-199</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright Elsevier BV Jun 30, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c442t-57519672cf59cd41176edb4816bf48558f454f267b009d2b0e7330489273c7113</citedby><cites>FETCH-LOGICAL-c442t-57519672cf59cd41176edb4816bf48558f454f267b009d2b0e7330489273c7113</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S092583881931134X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Lee, Seung-Hwan</creatorcontrib><creatorcontrib>Park, Gum-Jae</creatorcontrib><creatorcontrib>Sim, Seoung-Ju</creatorcontrib><creatorcontrib>Jin, Bong-Soo</creatorcontrib><creatorcontrib>Kim, Hyun-Soo</creatorcontrib><title>Improved electrochemical performances of LiNi0.8Co0.1Mn0.1O2 cathode via SiO2 coating</title><title>Journal of alloys and compounds</title><description>Surface-modified LiNi0.8Co0.1Mn0.1O2 cathode with different coating amounts of SiO2 (0.25–1 wt%) is successfully synthesized and its electrochemical performances are investigated. Compared to bare LiNi0.8Co0.1Mn0.1O2, the 0.25 wt% SiO2 coated LiNi0.8Co0.1Mn0.1O2 delivers an initial capacity of 200.7 mAh g−1 as well as the excellent cyclability (capacity retention of 87.3% after 100 cycles at 0.5C) and rate capability (82.2% at 2C). Furthermore, 0.25 wt% SiO2 coated LiNi0.8Co0.1Mn0.1O2 exhibits the stable cycle performance at 55 °C (84.5% after 100 cycles at 0.5C). Such improvements are attributed to the SiO2 coating, which can suppress the irreversible phase transformation and play a role in obstacle to protect the LiNi0.8Co0.1Mn0.1O2 from electrolyte.
•SiO2 coating was prepared with high crystallinity.•SiO2 coating has a discharge capacity of 200.7 mAh g−1.•SiO2 coating shows a rate capability of 82.2% at 2C.•SiO2 coating shows a stable cyclability of 84.5%, after 100 cycles.</description><subject>Cathodes</subject><subject>Cathodic coating (process)</subject><subject>Cyclability</subject><subject>Performance enhancement</subject><subject>Phase transitions</subject><subject>Protective coatings</subject><subject>Rate capability</subject><subject>Silicon dioxide</subject><subject>SiO2 coating</subject><subject>Surface-modified LiNi0.8Co0.1Mn0.1O2</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLAzEUhYMoWKs_QRhwPWPej5VI8VGodqFdh0wmYzPMTGoyFvz3prR7N_fC5ZxzOR8AtwhWCCJ-31Wd6XsbhgpDpCpIKgLlGZghKUhJOVfnYAYVZqUkUl6Cq5Q6CLOSoBnYLIddDHvXFK53dorBbt3gremLnYttiIMZrUtFaIuVf_ewkouQv76NeaxxYc20DY0r9t4UH_5wCGby49c1uGhNn9zNac_B5vnpc_FartYvy8XjqrSU4qlkgiHFBbYtU7ahCAnumppKxOuWSsZkSxltMRc1hKrBNXSCEEilwoJYgRCZg7tjbu7w_ePSpLvwE8f8UmOMFScSIpZV7KiyMaQUXat30Q8m_moE9YGg7vSJoD4Q1JDoTDD7Ho4-lyvsvYs6We8yj8bHzEo3wf-T8AcVtXka</recordid><startdate>20190630</startdate><enddate>20190630</enddate><creator>Lee, Seung-Hwan</creator><creator>Park, Gum-Jae</creator><creator>Sim, Seoung-Ju</creator><creator>Jin, Bong-Soo</creator><creator>Kim, Hyun-Soo</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20190630</creationdate><title>Improved electrochemical performances of LiNi0.8Co0.1Mn0.1O2 cathode via SiO2 coating</title><author>Lee, Seung-Hwan ; Park, Gum-Jae ; Sim, Seoung-Ju ; Jin, Bong-Soo ; Kim, Hyun-Soo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c442t-57519672cf59cd41176edb4816bf48558f454f267b009d2b0e7330489273c7113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Cathodes</topic><topic>Cathodic coating (process)</topic><topic>Cyclability</topic><topic>Performance enhancement</topic><topic>Phase transitions</topic><topic>Protective coatings</topic><topic>Rate capability</topic><topic>Silicon dioxide</topic><topic>SiO2 coating</topic><topic>Surface-modified LiNi0.8Co0.1Mn0.1O2</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lee, Seung-Hwan</creatorcontrib><creatorcontrib>Park, Gum-Jae</creatorcontrib><creatorcontrib>Sim, Seoung-Ju</creatorcontrib><creatorcontrib>Jin, Bong-Soo</creatorcontrib><creatorcontrib>Kim, Hyun-Soo</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lee, Seung-Hwan</au><au>Park, Gum-Jae</au><au>Sim, Seoung-Ju</au><au>Jin, Bong-Soo</au><au>Kim, Hyun-Soo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improved electrochemical performances of LiNi0.8Co0.1Mn0.1O2 cathode via SiO2 coating</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2019-06-30</date><risdate>2019</risdate><volume>791</volume><spage>193</spage><epage>199</epage><pages>193-199</pages><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>Surface-modified LiNi0.8Co0.1Mn0.1O2 cathode with different coating amounts of SiO2 (0.25–1 wt%) is successfully synthesized and its electrochemical performances are investigated. Compared to bare LiNi0.8Co0.1Mn0.1O2, the 0.25 wt% SiO2 coated LiNi0.8Co0.1Mn0.1O2 delivers an initial capacity of 200.7 mAh g−1 as well as the excellent cyclability (capacity retention of 87.3% after 100 cycles at 0.5C) and rate capability (82.2% at 2C). Furthermore, 0.25 wt% SiO2 coated LiNi0.8Co0.1Mn0.1O2 exhibits the stable cycle performance at 55 °C (84.5% after 100 cycles at 0.5C). Such improvements are attributed to the SiO2 coating, which can suppress the irreversible phase transformation and play a role in obstacle to protect the LiNi0.8Co0.1Mn0.1O2 from electrolyte.
•SiO2 coating was prepared with high crystallinity.•SiO2 coating has a discharge capacity of 200.7 mAh g−1.•SiO2 coating shows a rate capability of 82.2% at 2C.•SiO2 coating shows a stable cyclability of 84.5%, after 100 cycles.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2019.03.308</doi><tpages>7</tpages></addata></record> |
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| subjects | Cathodes Cathodic coating (process) Cyclability Performance enhancement Phase transitions Protective coatings Rate capability Silicon dioxide SiO2 coating Surface-modified LiNi0.8Co0.1Mn0.1O2 |
| title | Improved electrochemical performances of LiNi0.8Co0.1Mn0.1O2 cathode via SiO2 coating |
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