Ultra‐long cycle life and high rate performance subglobose Na3V2(PO4)2F3@C cathode and its regulation
Summary A nitrogen‐doped carbon coated subglobose Na3V2(PO4)2F3@C (NVPF) cathode for sodium‐ion batteries was synthesized by using hexadecyl trimethyl ammonium bromide (CTAB) as soft template and polyvinylidene fluoride (PVDF) as carbon source. CTAB plays a significant role on the formation of spher...
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| Veröffentlicht in: | International journal of energy research 2020-06, Vol.44 (8), p.6608-6622 |
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| creator | Zhan, Wen‐xing Fan, Chang‐ling Zhang, Wei‐hua Yi, Guo‐dong Chen, Han Han, Shao‐chang Liu, Jin‐shui |
| description | Summary
A nitrogen‐doped carbon coated subglobose Na3V2(PO4)2F3@C (NVPF) cathode for sodium‐ion batteries was synthesized by using hexadecyl trimethyl ammonium bromide (CTAB) as soft template and polyvinylidene fluoride (PVDF) as carbon source. CTAB plays a significant role on the formation of sphere micelles. Precursor ions are self‐assembled on the surface at appropriate concentration and its mechanism is investigated in subglobose NVPF@C‐4. CTAB also increases the conductivity of carbon layer as −(CH3)3N+ in CTAB is combined with residual carbon from PVDF to form partially N‐doped carbon. Meanwhile, the carbon source PVDF contributes to prevent the generation of impurity Na3V2(PO4)3 by compensating the evaporative fluorine. Generally, CTAB and PVDF play multifunctional roles in regulating Na3V2(PO4)2F3@C cathode with well‐developed crystallite, high rate performance, good conductivity, and ultra‐long cycle life. The specific capacity of NVPF@C‐4 cathode at 0.1 C and 10 C is as high as 121.5 mAh·g−1 and 99.2 mAh·g−1 with high capacity retention of 90.1% even after 1000 cycles at 10 C. The excellent rate performance is also attributed to the high diffusion coefficient of Na+ and high exchange current according to the kinetic analysis. The enhanced electrochemical performances reveal the special regulation in this paper is feasible to obtain excellent structural stability of NVPF materials.
Spherical micelles are formed through the regular arrangement of hydrophobic long carbon chain (C16H33−) and hydrophilic trimethylamine (−(CH3)3N+) of CTAB. The hydrophobic PVDF are homogeneously dispersed in the aqueous solution under the dispersing role of CTAB. Through the self‐assembled of precursor anions (PO43−, F−) and cations (Na+, V3+) on the surface of micelle, subglobose Na3V2(PO4)3F3 cathode for sodium‐ion batteries with well‐developed crystallite, ultra‐long cycle life and high rate performance are constructed after the sintering process. |
| doi_str_mv | 10.1002/er.5397 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_wiley</sourceid><recordid>TN_cdi_proquest_journals_2413347130</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2413347130</sourcerecordid><originalsourceid>FETCH-LOGICAL-g1717-45b56aaf9778702c5862604bab1d4a26cd48bb310cd19938cdf7fc55bd8e1bd53</originalsourceid><addsrcrecordid>eNotkM1Kw0AcxBdRsFbxFRa8KJK6_-wmm9yU0KpQrIiV3pb9SpqyzdZNgvTmI_iMPokt9TSH-c0MDEKXQEZASHxnwyihOT9CAyB5HgGwxTEaEJrSKCd8cYrO2nZFyM4DPkDV3HVB_n7_ON9UWG-1s9jVpcWyMXhZV0scZGfxxobSh7VstMVtryrnlW8tfpH0I75-nbGbeELvC6xlt_TmEK67Fgdb9U52tW_O0UkpXWsv_nWI5pPxe_EUTWePz8XDNKqAA49YopJUyjLnPOMk1kmWxilhSiowTMapNixTigLRBvKcZtqUvNRJokxmQZmEDtHVoXcT_Gdv206sfB-a3aSIGVDKOFCyo24P1Fft7FZsQr2WYSuAiP2Fwgaxv1CM3_ZC_wB912Uz</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2413347130</pqid></control><display><type>article</type><title>Ultra‐long cycle life and high rate performance subglobose Na3V2(PO4)2F3@C cathode and its regulation</title><source>Wiley Online Library Journals Frontfile Complete</source><creator>Zhan, Wen‐xing ; Fan, Chang‐ling ; Zhang, Wei‐hua ; Yi, Guo‐dong ; Chen, Han ; Han, Shao‐chang ; Liu, Jin‐shui</creator><creatorcontrib>Zhan, Wen‐xing ; Fan, Chang‐ling ; Zhang, Wei‐hua ; Yi, Guo‐dong ; Chen, Han ; Han, Shao‐chang ; Liu, Jin‐shui</creatorcontrib><description>Summary
A nitrogen‐doped carbon coated subglobose Na3V2(PO4)2F3@C (NVPF) cathode for sodium‐ion batteries was synthesized by using hexadecyl trimethyl ammonium bromide (CTAB) as soft template and polyvinylidene fluoride (PVDF) as carbon source. CTAB plays a significant role on the formation of sphere micelles. Precursor ions are self‐assembled on the surface at appropriate concentration and its mechanism is investigated in subglobose NVPF@C‐4. CTAB also increases the conductivity of carbon layer as −(CH3)3N+ in CTAB is combined with residual carbon from PVDF to form partially N‐doped carbon. Meanwhile, the carbon source PVDF contributes to prevent the generation of impurity Na3V2(PO4)3 by compensating the evaporative fluorine. Generally, CTAB and PVDF play multifunctional roles in regulating Na3V2(PO4)2F3@C cathode with well‐developed crystallite, high rate performance, good conductivity, and ultra‐long cycle life. The specific capacity of NVPF@C‐4 cathode at 0.1 C and 10 C is as high as 121.5 mAh·g−1 and 99.2 mAh·g−1 with high capacity retention of 90.1% even after 1000 cycles at 10 C. The excellent rate performance is also attributed to the high diffusion coefficient of Na+ and high exchange current according to the kinetic analysis. The enhanced electrochemical performances reveal the special regulation in this paper is feasible to obtain excellent structural stability of NVPF materials.
Spherical micelles are formed through the regular arrangement of hydrophobic long carbon chain (C16H33−) and hydrophilic trimethylamine (−(CH3)3N+) of CTAB. The hydrophobic PVDF are homogeneously dispersed in the aqueous solution under the dispersing role of CTAB. Through the self‐assembled of precursor anions (PO43−, F−) and cations (Na+, V3+) on the surface of micelle, subglobose Na3V2(PO4)3F3 cathode for sodium‐ion batteries with well‐developed crystallite, ultra‐long cycle life and high rate performance are constructed after the sintering process.</description><identifier>ISSN: 0363-907X</identifier><identifier>EISSN: 1099-114X</identifier><identifier>DOI: 10.1002/er.5397</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Inc</publisher><subject>Ammonium ; Ammonium compounds ; Batteries ; Carbon ; Carbon sources ; cathode ; Cathodes ; Cetyltrimethylammonium bromide ; Chemical synthesis ; Conductivity ; Crystallites ; Crystals ; Diffusion coefficient ; Diffusion rate ; Electrochemistry ; Fluorides ; Fluorine ; hexadecyl trimethyl ammonium bromide ; Micelles ; Nitrogen ; N‐doped pyrolytic carbon ; Performance enhancement ; Phosphates ; polyvinylidene fluoride ; Polyvinylidene fluorides ; Rechargeable batteries ; Sodium ; sodium vanadium fluorophosphates ; Sodium-ion batteries ; Specific capacity ; Stability ; Structural stability</subject><ispartof>International journal of energy research, 2020-06, Vol.44 (8), p.6608-6622</ispartof><rights>2020 John Wiley & Sons Ltd</rights><rights>2020 John Wiley & Sons, Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0001-6658-0210</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fer.5397$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fer.5397$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Zhan, Wen‐xing</creatorcontrib><creatorcontrib>Fan, Chang‐ling</creatorcontrib><creatorcontrib>Zhang, Wei‐hua</creatorcontrib><creatorcontrib>Yi, Guo‐dong</creatorcontrib><creatorcontrib>Chen, Han</creatorcontrib><creatorcontrib>Han, Shao‐chang</creatorcontrib><creatorcontrib>Liu, Jin‐shui</creatorcontrib><title>Ultra‐long cycle life and high rate performance subglobose Na3V2(PO4)2F3@C cathode and its regulation</title><title>International journal of energy research</title><description>Summary
A nitrogen‐doped carbon coated subglobose Na3V2(PO4)2F3@C (NVPF) cathode for sodium‐ion batteries was synthesized by using hexadecyl trimethyl ammonium bromide (CTAB) as soft template and polyvinylidene fluoride (PVDF) as carbon source. CTAB plays a significant role on the formation of sphere micelles. Precursor ions are self‐assembled on the surface at appropriate concentration and its mechanism is investigated in subglobose NVPF@C‐4. CTAB also increases the conductivity of carbon layer as −(CH3)3N+ in CTAB is combined with residual carbon from PVDF to form partially N‐doped carbon. Meanwhile, the carbon source PVDF contributes to prevent the generation of impurity Na3V2(PO4)3 by compensating the evaporative fluorine. Generally, CTAB and PVDF play multifunctional roles in regulating Na3V2(PO4)2F3@C cathode with well‐developed crystallite, high rate performance, good conductivity, and ultra‐long cycle life. The specific capacity of NVPF@C‐4 cathode at 0.1 C and 10 C is as high as 121.5 mAh·g−1 and 99.2 mAh·g−1 with high capacity retention of 90.1% even after 1000 cycles at 10 C. The excellent rate performance is also attributed to the high diffusion coefficient of Na+ and high exchange current according to the kinetic analysis. The enhanced electrochemical performances reveal the special regulation in this paper is feasible to obtain excellent structural stability of NVPF materials.
Spherical micelles are formed through the regular arrangement of hydrophobic long carbon chain (C16H33−) and hydrophilic trimethylamine (−(CH3)3N+) of CTAB. The hydrophobic PVDF are homogeneously dispersed in the aqueous solution under the dispersing role of CTAB. Through the self‐assembled of precursor anions (PO43−, F−) and cations (Na+, V3+) on the surface of micelle, subglobose Na3V2(PO4)3F3 cathode for sodium‐ion batteries with well‐developed crystallite, ultra‐long cycle life and high rate performance are constructed after the sintering process.</description><subject>Ammonium</subject><subject>Ammonium compounds</subject><subject>Batteries</subject><subject>Carbon</subject><subject>Carbon sources</subject><subject>cathode</subject><subject>Cathodes</subject><subject>Cetyltrimethylammonium bromide</subject><subject>Chemical synthesis</subject><subject>Conductivity</subject><subject>Crystallites</subject><subject>Crystals</subject><subject>Diffusion coefficient</subject><subject>Diffusion rate</subject><subject>Electrochemistry</subject><subject>Fluorides</subject><subject>Fluorine</subject><subject>hexadecyl trimethyl ammonium bromide</subject><subject>Micelles</subject><subject>Nitrogen</subject><subject>N‐doped pyrolytic carbon</subject><subject>Performance enhancement</subject><subject>Phosphates</subject><subject>polyvinylidene fluoride</subject><subject>Polyvinylidene fluorides</subject><subject>Rechargeable batteries</subject><subject>Sodium</subject><subject>sodium vanadium fluorophosphates</subject><subject>Sodium-ion batteries</subject><subject>Specific capacity</subject><subject>Stability</subject><subject>Structural stability</subject><issn>0363-907X</issn><issn>1099-114X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNotkM1Kw0AcxBdRsFbxFRa8KJK6_-wmm9yU0KpQrIiV3pb9SpqyzdZNgvTmI_iMPokt9TSH-c0MDEKXQEZASHxnwyihOT9CAyB5HgGwxTEaEJrSKCd8cYrO2nZFyM4DPkDV3HVB_n7_ON9UWG-1s9jVpcWyMXhZV0scZGfxxobSh7VstMVtryrnlW8tfpH0I75-nbGbeELvC6xlt_TmEK67Fgdb9U52tW_O0UkpXWsv_nWI5pPxe_EUTWePz8XDNKqAA49YopJUyjLnPOMk1kmWxilhSiowTMapNixTigLRBvKcZtqUvNRJokxmQZmEDtHVoXcT_Gdv206sfB-a3aSIGVDKOFCyo24P1Fft7FZsQr2WYSuAiP2Fwgaxv1CM3_ZC_wB912Uz</recordid><startdate>20200625</startdate><enddate>20200625</enddate><creator>Zhan, Wen‐xing</creator><creator>Fan, Chang‐ling</creator><creator>Zhang, Wei‐hua</creator><creator>Yi, Guo‐dong</creator><creator>Chen, Han</creator><creator>Han, Shao‐chang</creator><creator>Liu, Jin‐shui</creator><general>John Wiley & Sons, Inc</general><general>Hindawi Limited</general><scope>7SP</scope><scope>7ST</scope><scope>7TB</scope><scope>7TN</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>F28</scope><scope>FR3</scope><scope>H96</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0001-6658-0210</orcidid></search><sort><creationdate>20200625</creationdate><title>Ultra‐long cycle life and high rate performance subglobose Na3V2(PO4)2F3@C cathode and its regulation</title><author>Zhan, Wen‐xing ; Fan, Chang‐ling ; Zhang, Wei‐hua ; Yi, Guo‐dong ; Chen, Han ; Han, Shao‐chang ; Liu, Jin‐shui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g1717-45b56aaf9778702c5862604bab1d4a26cd48bb310cd19938cdf7fc55bd8e1bd53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Ammonium</topic><topic>Ammonium compounds</topic><topic>Batteries</topic><topic>Carbon</topic><topic>Carbon sources</topic><topic>cathode</topic><topic>Cathodes</topic><topic>Cetyltrimethylammonium bromide</topic><topic>Chemical synthesis</topic><topic>Conductivity</topic><topic>Crystallites</topic><topic>Crystals</topic><topic>Diffusion coefficient</topic><topic>Diffusion rate</topic><topic>Electrochemistry</topic><topic>Fluorides</topic><topic>Fluorine</topic><topic>hexadecyl trimethyl ammonium bromide</topic><topic>Micelles</topic><topic>Nitrogen</topic><topic>N‐doped pyrolytic carbon</topic><topic>Performance enhancement</topic><topic>Phosphates</topic><topic>polyvinylidene fluoride</topic><topic>Polyvinylidene fluorides</topic><topic>Rechargeable batteries</topic><topic>Sodium</topic><topic>sodium vanadium fluorophosphates</topic><topic>Sodium-ion batteries</topic><topic>Specific capacity</topic><topic>Stability</topic><topic>Structural stability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhan, Wen‐xing</creatorcontrib><creatorcontrib>Fan, Chang‐ling</creatorcontrib><creatorcontrib>Zhang, Wei‐hua</creatorcontrib><creatorcontrib>Yi, Guo‐dong</creatorcontrib><creatorcontrib>Chen, Han</creatorcontrib><creatorcontrib>Han, Shao‐chang</creatorcontrib><creatorcontrib>Liu, Jin‐shui</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Environment Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>International journal of energy research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhan, Wen‐xing</au><au>Fan, Chang‐ling</au><au>Zhang, Wei‐hua</au><au>Yi, Guo‐dong</au><au>Chen, Han</au><au>Han, Shao‐chang</au><au>Liu, Jin‐shui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ultra‐long cycle life and high rate performance subglobose Na3V2(PO4)2F3@C cathode and its regulation</atitle><jtitle>International journal of energy research</jtitle><date>2020-06-25</date><risdate>2020</risdate><volume>44</volume><issue>8</issue><spage>6608</spage><epage>6622</epage><pages>6608-6622</pages><issn>0363-907X</issn><eissn>1099-114X</eissn><abstract>Summary
A nitrogen‐doped carbon coated subglobose Na3V2(PO4)2F3@C (NVPF) cathode for sodium‐ion batteries was synthesized by using hexadecyl trimethyl ammonium bromide (CTAB) as soft template and polyvinylidene fluoride (PVDF) as carbon source. CTAB plays a significant role on the formation of sphere micelles. Precursor ions are self‐assembled on the surface at appropriate concentration and its mechanism is investigated in subglobose NVPF@C‐4. CTAB also increases the conductivity of carbon layer as −(CH3)3N+ in CTAB is combined with residual carbon from PVDF to form partially N‐doped carbon. Meanwhile, the carbon source PVDF contributes to prevent the generation of impurity Na3V2(PO4)3 by compensating the evaporative fluorine. Generally, CTAB and PVDF play multifunctional roles in regulating Na3V2(PO4)2F3@C cathode with well‐developed crystallite, high rate performance, good conductivity, and ultra‐long cycle life. The specific capacity of NVPF@C‐4 cathode at 0.1 C and 10 C is as high as 121.5 mAh·g−1 and 99.2 mAh·g−1 with high capacity retention of 90.1% even after 1000 cycles at 10 C. The excellent rate performance is also attributed to the high diffusion coefficient of Na+ and high exchange current according to the kinetic analysis. The enhanced electrochemical performances reveal the special regulation in this paper is feasible to obtain excellent structural stability of NVPF materials.
Spherical micelles are formed through the regular arrangement of hydrophobic long carbon chain (C16H33−) and hydrophilic trimethylamine (−(CH3)3N+) of CTAB. The hydrophobic PVDF are homogeneously dispersed in the aqueous solution under the dispersing role of CTAB. Through the self‐assembled of precursor anions (PO43−, F−) and cations (Na+, V3+) on the surface of micelle, subglobose Na3V2(PO4)3F3 cathode for sodium‐ion batteries with well‐developed crystallite, ultra‐long cycle life and high rate performance are constructed after the sintering process.</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/er.5397</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0001-6658-0210</orcidid></addata></record> |
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| subjects | Ammonium Ammonium compounds Batteries Carbon Carbon sources cathode Cathodes Cetyltrimethylammonium bromide Chemical synthesis Conductivity Crystallites Crystals Diffusion coefficient Diffusion rate Electrochemistry Fluorides Fluorine hexadecyl trimethyl ammonium bromide Micelles Nitrogen N‐doped pyrolytic carbon Performance enhancement Phosphates polyvinylidene fluoride Polyvinylidene fluorides Rechargeable batteries Sodium sodium vanadium fluorophosphates Sodium-ion batteries Specific capacity Stability Structural stability |
| title | Ultra‐long cycle life and high rate performance subglobose Na3V2(PO4)2F3@C cathode and its regulation |
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