A quantitative and qualitative study of gas generation observed in LiFePO$_4$-TiNb$_2$O$_7$ cells
Overview & Synopsis
Since 20 years, titanium oxide materials, and in particular lithium titanate spinel Li$_4$Ti$_5$O$_{12}$ (LTO), were considered as promising negative electrode materials for lithium-ion cells. In the case of the TiNb$_2$O$_7$ compound (TNO), which has a larger theoretical lithiation capacity of 388 mAh g$^{-1}$, few studies have focused on the outgassing of the material. In this work, we quantified the volume produced as a function of different cycling parameters and then characterized the produced species and show a prevalence of H$_2$ gas. The use of carbon coating as a mitigation strategy and its limitation is also discussed.
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Document Information
| Document Title | A quantitative and qualitative study of gas generation observed in LiFePO$_4$-TiNb$_2$O$_7$ cells |
|---|---|
| Author / Organization | Benjamin Mercier-Guyon, Jean-François Colin, Irina Profatilova, Sebastien Martinet |
| Subject & Discipline | Multidisciplinary Academic Open Research |
| Categories | Science & Mathematics |
| Publication Year | 2023 |
| License / Rights | Open Access / Creative Commons |
| Resource Verification | Listed PDF (Verification Pending) |
| Original Host Website |
HAL Open Science
(hal.science)
|
| File Format | application/pdf (Portable Document Format) |
| Language | EN |
| Catalog ID | DOC-9957 |
| Original Source Link | Visit Source Page on hal.science » |