Fabrication and electrical properties of bulk textured LiCoO2
In order to study the orientation dependence of the electrical properties of layered structure cathode materials used in lithium-ion thin-film microbatteries, a typical composition, LiCoO2, has been hot-press sintered in bulk with a strong crystallographic texture. Microstructural characterization u...
| Príomhchruthaitheoirí: | , , |
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| Formáid: | Journal article |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
2010
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| _version_ | 1826275532315033600 |
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| author | Zhang, H Baker, P Grant, P |
| author_facet | Zhang, H Baker, P Grant, P |
| author_sort | Zhang, H |
| collection | OXFORD |
| description | In order to study the orientation dependence of the electrical properties of layered structure cathode materials used in lithium-ion thin-film microbatteries, a typical composition, LiCoO2, has been hot-press sintered in bulk with a strong crystallographic texture. Microstructural characterization using X-ray diffraction, scanning electron microscopy, and Raman spectroscopy showed that the degree of LiCoO2 texture depended upon the precise hot-press conditions used. There was a pronounced orientation of the polycrystalline LiCoO2 c-axis in the pressing direction with a high Lotgering factor (f=0.96) for sintering at 950°C. The pronounced texture led to a remarkable anisotropy in electronic conductivity between directions parallel (σ∥) and perpendicular (σ⊥) to the pressing direction in the temperature range 190-400 K, with σ⊥σ∥=187 at 300 K. The results suggest that texture can be used to tune not only the well-known electrochemical performance of all-solid-state lithium-ion thin-film batteries, but also their electronic conductivity. © 2010 The American Ceramic Society. |
| first_indexed | 2024-03-06T23:00:09Z |
| format | Journal article |
| id | oxford-uuid:61d606d3-df75-4f86-b0a5-01fb9c992bf6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:00:09Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:61d606d3-df75-4f86-b0a5-01fb9c992bf62022-03-26T18:02:21ZFabrication and electrical properties of bulk textured LiCoO2 Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:61d606d3-df75-4f86-b0a5-01fb9c992bf6EnglishSymplectic Elements at Oxford2010Zhang, HBaker, PGrant, PIn order to study the orientation dependence of the electrical properties of layered structure cathode materials used in lithium-ion thin-film microbatteries, a typical composition, LiCoO2, has been hot-press sintered in bulk with a strong crystallographic texture. Microstructural characterization using X-ray diffraction, scanning electron microscopy, and Raman spectroscopy showed that the degree of LiCoO2 texture depended upon the precise hot-press conditions used. There was a pronounced orientation of the polycrystalline LiCoO2 c-axis in the pressing direction with a high Lotgering factor (f=0.96) for sintering at 950°C. The pronounced texture led to a remarkable anisotropy in electronic conductivity between directions parallel (σ∥) and perpendicular (σ⊥) to the pressing direction in the temperature range 190-400 K, with σ⊥σ∥=187 at 300 K. The results suggest that texture can be used to tune not only the well-known electrochemical performance of all-solid-state lithium-ion thin-film batteries, but also their electronic conductivity. © 2010 The American Ceramic Society. |
| spellingShingle | Zhang, H Baker, P Grant, P Fabrication and electrical properties of bulk textured LiCoO2 |
| title | Fabrication and electrical properties of bulk textured LiCoO2
|
| title_full | Fabrication and electrical properties of bulk textured LiCoO2
|
| title_fullStr | Fabrication and electrical properties of bulk textured LiCoO2
|
| title_full_unstemmed | Fabrication and electrical properties of bulk textured LiCoO2
|
| title_short | Fabrication and electrical properties of bulk textured LiCoO2
|
| title_sort | fabrication and electrical properties of bulk textured licoo2 |
| work_keys_str_mv | AT zhangh fabricationandelectricalpropertiesofbulktexturedlicoo2 AT bakerp fabricationandelectricalpropertiesofbulktexturedlicoo2 AT grantp fabricationandelectricalpropertiesofbulktexturedlicoo2 |