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| 001 | 891042 | ||
| 005 | 20240711085630.0 | ||
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| 100 | 1 | _ | |a Mücke, Robert |0 P:(DE-Juel1)129641 |b 0 |e Corresponding author |u fzj |
| 245 | _ | _ | |a Modelling electro-chemical induced stresses in all-solid-state batteries: Anisotropy effects in cathodes and cell design optimisation |
| 260 | _ | _ | |a New York, NY [u.a.] |c 2021 |b Elsevier |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a All-solid-state lithium batteries offer promising advantages in energy density and safety compared to conventional lithium ion batteries. However, the majority of this type of batteries suffers from a low cycling stability, which might originate from mechanical fatigue caused by mechanical stresses and strains in the rigid structure. We introduce a general approach to model and analyse the stresses in rigid cathode/electrolyte electrodes on a cell level, which enables to develop optimised cell designs with an improved mechanical stability. We apply this approach on composite cathodes with a Li7La3Zr2O12 (LLZO) ceramic electrolyte and LiCoO2 (LCO) active material. Using the 3D microstructure of a real cathode, the stresses inside a free-standing electrode and model cells with a thin and a thick LLZO separator are calculated for the charging cycle considering isotropic and anisotropic material properties of LCO as well as non-textured and textured crystallographic alignment. Compared to randomly oriented crystals, the textured crystallographic alignment of LCO grains, introduced by the manufacturing process, has a significant effect and yields considerably better stress distributions in all cell configurations investigated. The design of optimised all-solid-state cells with reduced separator thickness leads to a significantly more favourable stress state than a typical lab scale separator-supported cell. |
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| 700 | 1 | _ | |a Kaghazchi, Payam |0 P:(DE-Juel1)174502 |b 2 |u fzj |
| 700 | 1 | _ | |a Fattakhova-Rohlfing, Dina |0 P:(DE-Juel1)171780 |b 3 |
| 700 | 1 | _ | |a Guillon, Olivier |0 P:(DE-Juel1)161591 |b 4 |u fzj |
| 773 | _ | _ | |a 10.1016/j.jpowsour.2020.229430 |g Vol. 489, p. 229430 - |0 PERI:(DE-600)1491915-1 |p 229430 |t Journal of power sources |v 489 |y 2021 |x 0378-7753 |
| 856 | 4 | _ | |y Published on 2021-01-20. Available in OpenAccess from 2023-01-20. |u https://juser.fz-juelich.de/record/891042/files/Muecke%20etal%202021%20-%20Modelling%20electro-chemical%20induced%20stresses%20in%20all-solid-state%20batteries%20-%20PrePrint.pdf |
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| 856 | 4 | _ | |y Restricted |u https://juser.fz-juelich.de/record/891042/files/Muecke%20etal%202021%20-%20Modelling%20electro-chemical%20induced%20stresses%20in%20all-solid-state%20batteries.pdf |
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