The effect of calcium impurities of β″-alumina on the degradation of NaxCoO2 cathodes in all solid state sodium-ion batteries
β″-alumina is a promising solid electrolyte candidate for room-temperature all-solid-state sodium-ion batteries due to its high sodium ionic conductivity of up to 10−2 S cm−1 at room temperature. However, calcium impurities are known to be present in the Al2O3 precursors used to produce commercial β...
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| Veröffentlicht in: | Solid state ionics 2019-11, Vol.341, p.115041, Article 115041 |
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| container_title | Solid state ionics |
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| creator | Kehne, P. Guhl, C. Alff, L. Hausbrand, R. Komissinskiy, P. |
| description | β″-alumina is a promising solid electrolyte candidate for room-temperature all-solid-state sodium-ion batteries due to its high sodium ionic conductivity of up to 10−2 S cm−1 at room temperature. However, calcium impurities are known to be present in the Al2O3 precursors used to produce commercial β″-alumina. Here we present a study on the impact of the calcium impurities which are diffusing in a temperature controlled process from the β″-alumina substrates into the NaxCoO2 layered oxide cathode. The increasing calcium content in the NaxCoO2 cathode leads to a degradation due to the formation of the calcium-rich Ca3Co4O9 phase. The electrochemical performance of sodium-ion batteries is investigated with NaxCoO2/β″-alumina/Na solid-state model batteries. The thin-film cathodes were grown onto commercial β″-alumina ceramic substrates by pulsed laser deposition and cycled between 2.0 and 3.8 V with metallic sodium anodes.
•Temperature controlled calcium impurity diffusion from β″-alumina.•NaxCoO2 degradation into Ca3Co4O9•All-solid state NaxCoO2/β″-alumina/Na model battery |
| doi_str_mv | 10.1016/j.ssi.2019.115041 |
| format | Article |
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•Temperature controlled calcium impurity diffusion from β″-alumina.•NaxCoO2 degradation into Ca3Co4O9•All-solid state NaxCoO2/β″-alumina/Na model battery</description><subject>Aluminum oxide</subject><subject>Batteries</subject><subject>Calcium</subject><subject>Cathodes</subject><subject>Degradation</subject><subject>Electrochemical analysis</subject><subject>Electrolytes</subject><subject>Impurities</subject><subject>Ion currents</subject><subject>Lime</subject><subject>Lithium</subject><subject>Pulsed laser deposition</subject><subject>Pulsed lasers</subject><subject>Rechargeable batteries</subject><subject>Room temperature</subject><subject>Sodium-ion batteries</subject><subject>Solid electrolytes</subject><subject>Solid state</subject><subject>Solid state physics</subject><subject>Substrates</subject><subject>Thin films</subject><issn>0167-2738</issn><issn>1872-7689</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kM1OxCAURonRxHH0AdyRuO4ItBQaV2biXzJxNuOaMPRWaTplBGp0N8-k7-FD-CQyqWtXwM13vksOQueUzCih5WU7C8HOGKHVjFJOCnqAJlQKlolSVodokjIiYyKXx-gkhJYQUuaynKDd6gUwNA2YiF2Dje6MHTbYbraDt9FC2E-_P392X5nuho3tNXY9jgmq4dnrWkeb3inzqN_nbslSQ3xxdeJsj3XX4eA6W-MQdYR0r1N5tifWOkbwqf8UHTW6C3D2d07R0-3Nan6fLZZ3D_PrRWZyxmNWFlxow4gBw1glwDSScwIlKSBnlEMDuWamYhxoLSQvgcg1Z6UUcp1m0uRTdDH2br17HSBE1brB92mlYjmtqCAFJylFx5TxLgQPjdp6u9H-Q1Gi9qJVq5JotRetRtGJuRoZSN9_s-BVMBZ6A7X1Sauqnf2H_gXfDIgh</recordid><startdate>20191105</startdate><enddate>20191105</enddate><creator>Kehne, P.</creator><creator>Guhl, C.</creator><creator>Alff, L.</creator><creator>Hausbrand, R.</creator><creator>Komissinskiy, P.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20191105</creationdate><title>The effect of calcium impurities of β″-alumina on the degradation of NaxCoO2 cathodes in all solid state sodium-ion batteries</title><author>Kehne, P. ; Guhl, C. ; Alff, L. ; Hausbrand, R. ; Komissinskiy, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c325t-6457ac20cec2297ecf8550e604e3215efe3a2c925e1d7856e08b526878b25e8c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Aluminum oxide</topic><topic>Batteries</topic><topic>Calcium</topic><topic>Cathodes</topic><topic>Degradation</topic><topic>Electrochemical analysis</topic><topic>Electrolytes</topic><topic>Impurities</topic><topic>Ion currents</topic><topic>Lime</topic><topic>Lithium</topic><topic>Pulsed laser deposition</topic><topic>Pulsed lasers</topic><topic>Rechargeable batteries</topic><topic>Room temperature</topic><topic>Sodium-ion batteries</topic><topic>Solid electrolytes</topic><topic>Solid state</topic><topic>Solid state physics</topic><topic>Substrates</topic><topic>Thin films</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kehne, P.</creatorcontrib><creatorcontrib>Guhl, C.</creatorcontrib><creatorcontrib>Alff, L.</creatorcontrib><creatorcontrib>Hausbrand, R.</creatorcontrib><creatorcontrib>Komissinskiy, P.</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Solid state ionics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kehne, P.</au><au>Guhl, C.</au><au>Alff, L.</au><au>Hausbrand, R.</au><au>Komissinskiy, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of calcium impurities of β″-alumina on the degradation of NaxCoO2 cathodes in all solid state sodium-ion batteries</atitle><jtitle>Solid state ionics</jtitle><date>2019-11-05</date><risdate>2019</risdate><volume>341</volume><spage>115041</spage><pages>115041-</pages><artnum>115041</artnum><issn>0167-2738</issn><eissn>1872-7689</eissn><abstract>β″-alumina is a promising solid electrolyte candidate for room-temperature all-solid-state sodium-ion batteries due to its high sodium ionic conductivity of up to 10−2 S cm−1 at room temperature. However, calcium impurities are known to be present in the Al2O3 precursors used to produce commercial β″-alumina. Here we present a study on the impact of the calcium impurities which are diffusing in a temperature controlled process from the β″-alumina substrates into the NaxCoO2 layered oxide cathode. The increasing calcium content in the NaxCoO2 cathode leads to a degradation due to the formation of the calcium-rich Ca3Co4O9 phase. The electrochemical performance of sodium-ion batteries is investigated with NaxCoO2/β″-alumina/Na solid-state model batteries. The thin-film cathodes were grown onto commercial β″-alumina ceramic substrates by pulsed laser deposition and cycled between 2.0 and 3.8 V with metallic sodium anodes.
•Temperature controlled calcium impurity diffusion from β″-alumina.•NaxCoO2 degradation into Ca3Co4O9•All-solid state NaxCoO2/β″-alumina/Na model battery</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.ssi.2019.115041</doi></addata></record> |
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| subjects | Aluminum oxide Batteries Calcium Cathodes Degradation Electrochemical analysis Electrolytes Impurities Ion currents Lime Lithium Pulsed laser deposition Pulsed lasers Rechargeable batteries Room temperature Sodium-ion batteries Solid electrolytes Solid state Solid state physics Substrates Thin films |
| title | The effect of calcium impurities of β″-alumina on the degradation of NaxCoO2 cathodes in all solid state sodium-ion batteries |
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