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Tracer diffusion coefficients measurements on LaPO$$_{4}$$-dispersed LATP by means of neutron radiography

Song, F.*; Chen, H.*; 林田 洋寿*; 甲斐 哲也   ; 篠原 武尚   ; 薮塚 武史*; 八尾 健*; 高井 茂臣*

Song, F.*; Chen, H.*; Hayashida, Hirotoshi*; Kai, Tetsuya; Shinohara, Takenao; Yabutsuka, Takeshi*; Yao, Takeshi*; Takai, Shigeomi*

Lithium tracer diffusion coefficients have been measured in Li$$_{1.3}$$Al$$_{0.3}$$Ti$$_{1.7}$$(PO$$_4$$)$$_3$$ (LATP) and LATP - LaPO$$_4$$ composite solid electrolytes in the temperature range between 300$$^{circ}$$C and 500$$^{circ}$$C by means of neutron radiography technique that utilizes the difference in neutron attenuation of $$^6$$Li and $$^7$$Li isotopes. The diffusion coefficient of LATP - LaPO$$_4$$ composite is higher than that of pristine LATP, although the difference is much smaller than that estimated from the room temperature conductivity. This suggests that the bulk diffusion becomes the predominant diffusion mechanism at 300$$^{circ}$$C to 500$$^{circ}$$C instead of the diffusion along the space charge layer formed around the LaPO$$_4$$ dispersants.

使用言語

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English

掲載資料名

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Solid State Ionics

巻

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377

号

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ページ数

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p.115873_1 - 115873_6

発行年月

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2022/04

発表会議名

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開催年月

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開催都市

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開催国

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キーワード

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Neutron Radiography; Diffusion coefficient; Lithium ion; Tracer diffusion; Space charge layer; LATP

特許データ

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PDF

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論文URL

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https://doi.org/10.1016/j.ssi.2022.115873

研究データの公開先DOI

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本成果にかかわる研究データのリンクです。

使用施設

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J-PARC物質・生命科学実験施設  

広報プレスリリース

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論文解説記事
(成果普及情報誌)

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受委託・共同研究相手機関

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Access

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- Accesses

InCites™

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パーセンタイル：30.08

分野：Chemistry, Physical

Altmetrics

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