Measuring the buried interphase between solid electrolytes and lithium metal using neutrons

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F25%3A00639590" target="_blank" >RIV/61389005:_____/25:00639590 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlelanding/2025/ta/d5ta05758b" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2025/ta/d5ta05758b</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d5ta05758b" target="_blank" >10.1039/d5ta05758b</a>

Result language
angličtina
Original language name
Measuring the buried interphase between solid electrolytes and lithium metal using neutrons
Original language description
Interfaces are the key to next-generation high-energy batteries including solid-state Li metal batteries. In solid-state batteries, the buried nature of solid-solid electrolyte-electrode interfaces makes studying them difficult. Neutrons have significant potential to non-destructively probe these buried solid-solid interfaces. This work presents a comparative study using both neutron depth profiling (NDP) and neutron reflectometry (NR) to study a model lithium metal-lithium phosphorus oxynitride (LiPON) solid electrolyte system. In the NDP data, no distinct interphase is observed at the interface. NR shows a difference between electrodeposited, and vapor deposited LiPON-Li interfaces but finds both are gradient interphases that are less than 30 nm thick. Additional simulations of the LiPON-Li2O-Li system demonstrate that NDP has an excellent resolution in the 50 nm-1 mu m regime while NR has an ideal resolution from 0.1-200 nm with different sample requirements. Together NDP and NR can provide a complementary understanding of interfaces between Li metal and solid electrolytes across relevant length scales.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/EH22_008%2F0004591" target="_blank" >EH22_008/0004591: Ferroic Multifunctionalities</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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