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Structure and Electrochemical Properties of Li 4 Ti 5 O 12 Prepared via Low-Temperature Precipitation
This work aimed to prepare the spinel phase Li 4 Ti 5 O 12 by a combination of the low-temperature precipitation technique and assisted calcination step. X-ray diffraction (XRD) revealed that the intermediated phase was Li 2 TiO 3 , and the spinel phase could be evidently formed at 700°C for 12 to 2...
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| Published in: | Journal of chemistry 2019-08, Vol.2019, p.1-7 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c809-6c587cdb2c59987f99e64ce2b068ebb5bf1129e2e88addc5fd540eaad6fd4d7c3 |
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| cites | cdi_FETCH-LOGICAL-c809-6c587cdb2c59987f99e64ce2b068ebb5bf1129e2e88addc5fd540eaad6fd4d7c3 |
| container_end_page | 7 |
| container_issue | |
| container_start_page | 1 |
| container_title | Journal of chemistry |
| container_volume | 2019 |
| creator | Huynh, Le Thanh Nguyen Ha, Cam Thanh Duy Nguyen, Viet Dung Nguyen, Dinh Quan Le, My Loan Phung Man Tran, Van |
| description | This work aimed to prepare the spinel phase Li
4
Ti
5
O
12
by a combination of the low-temperature precipitation technique and assisted calcination step. X-ray diffraction (XRD) revealed that the intermediated phase was Li
2
TiO
3
, and the spinel phase could be evidently formed at 700°C for 12 to 20 hours. The morphology of spinel powder, determined by SEM and TEM, exhibited a good distribution at the submicrometric scale that promoted a fast kinetic of Li migration and an excellent performance at the high-rate cycling test. The stable performances were achieved in the charge-discharge test at different current densities: 80 mA/g (165 mAh/g), 320 mA (160 mAh/g), and 1600 mA (145 mAh/g) upon 100 cycles. Moreover, we observe a capacity retention of 48% (corresponding 80 mA/g) at a high rate of 5000 mAh/g. The cyclic voltammetry measurement displayed a reversible system and revealed the lithium diffusion coefficient of 1.15 × 10
−11
cm
2
/s. |
| doi_str_mv | 10.1155/2019/1727859 |
| format | article |
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4
Ti
5
O
12
by a combination of the low-temperature precipitation technique and assisted calcination step. X-ray diffraction (XRD) revealed that the intermediated phase was Li
2
TiO
3
, and the spinel phase could be evidently formed at 700°C for 12 to 20 hours. The morphology of spinel powder, determined by SEM and TEM, exhibited a good distribution at the submicrometric scale that promoted a fast kinetic of Li migration and an excellent performance at the high-rate cycling test. The stable performances were achieved in the charge-discharge test at different current densities: 80 mA/g (165 mAh/g), 320 mA (160 mAh/g), and 1600 mA (145 mAh/g) upon 100 cycles. Moreover, we observe a capacity retention of 48% (corresponding 80 mA/g) at a high rate of 5000 mAh/g. The cyclic voltammetry measurement displayed a reversible system and revealed the lithium diffusion coefficient of 1.15 × 10
−11
cm
2
/s.</description><identifier>ISSN: 2090-9063</identifier><identifier>EISSN: 2090-9071</identifier><identifier>DOI: 10.1155/2019/1727859</identifier><language>eng</language><ispartof>Journal of chemistry, 2019-08, Vol.2019, p.1-7</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c809-6c587cdb2c59987f99e64ce2b068ebb5bf1129e2e88addc5fd540eaad6fd4d7c3</citedby><cites>FETCH-LOGICAL-c809-6c587cdb2c59987f99e64ce2b068ebb5bf1129e2e88addc5fd540eaad6fd4d7c3</cites><orcidid>0000-0003-1055-3672 ; 0000-0003-4806-7362</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>Huynh, Le Thanh Nguyen</creatorcontrib><creatorcontrib>Ha, Cam Thanh Duy</creatorcontrib><creatorcontrib>Nguyen, Viet Dung</creatorcontrib><creatorcontrib>Nguyen, Dinh Quan</creatorcontrib><creatorcontrib>Le, My Loan Phung</creatorcontrib><creatorcontrib>Man Tran, Van</creatorcontrib><title>Structure and Electrochemical Properties of Li 4 Ti 5 O 12 Prepared via Low-Temperature Precipitation</title><title>Journal of chemistry</title><description>This work aimed to prepare the spinel phase Li
4
Ti
5
O
12
by a combination of the low-temperature precipitation technique and assisted calcination step. X-ray diffraction (XRD) revealed that the intermediated phase was Li
2
TiO
3
, and the spinel phase could be evidently formed at 700°C for 12 to 20 hours. The morphology of spinel powder, determined by SEM and TEM, exhibited a good distribution at the submicrometric scale that promoted a fast kinetic of Li migration and an excellent performance at the high-rate cycling test. The stable performances were achieved in the charge-discharge test at different current densities: 80 mA/g (165 mAh/g), 320 mA (160 mAh/g), and 1600 mA (145 mAh/g) upon 100 cycles. Moreover, we observe a capacity retention of 48% (corresponding 80 mA/g) at a high rate of 5000 mAh/g. The cyclic voltammetry measurement displayed a reversible system and revealed the lithium diffusion coefficient of 1.15 × 10
−11
cm
2
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4
Ti
5
O
12
by a combination of the low-temperature precipitation technique and assisted calcination step. X-ray diffraction (XRD) revealed that the intermediated phase was Li
2
TiO
3
, and the spinel phase could be evidently formed at 700°C for 12 to 20 hours. The morphology of spinel powder, determined by SEM and TEM, exhibited a good distribution at the submicrometric scale that promoted a fast kinetic of Li migration and an excellent performance at the high-rate cycling test. The stable performances were achieved in the charge-discharge test at different current densities: 80 mA/g (165 mAh/g), 320 mA (160 mAh/g), and 1600 mA (145 mAh/g) upon 100 cycles. Moreover, we observe a capacity retention of 48% (corresponding 80 mA/g) at a high rate of 5000 mAh/g. The cyclic voltammetry measurement displayed a reversible system and revealed the lithium diffusion coefficient of 1.15 × 10
−11
cm
2
/s.</abstract><doi>10.1155/2019/1727859</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-1055-3672</orcidid><orcidid>https://orcid.org/0000-0003-4806-7362</orcidid></addata></record> |
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| ispartof | Journal of chemistry, 2019-08, Vol.2019, p.1-7 |
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| language | eng |
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| source | Open Access: Wiley-Blackwell Open Access Journals; Publicly Available Content Database; Free Full-Text Journals in Chemistry |
| title | Structure and Electrochemical Properties of Li 4 Ti 5 O 12 Prepared via Low-Temperature Precipitation |
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