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| Home > Workflow collections > Publication Charges > Elucidating the lithium deposition behavior in open-porous copper micro-foam negative electrodes for zero-excess lithium metal batteries > print |
| 001 | 1017615 | ||
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| 100 | 1 | _ | |a Ingber, Tjark T. K. |0 0000-0002-9197-3216 |b 0 |
| 245 | _ | _ | |a Elucidating the lithium deposition behavior in open-porous copper micro-foam negative electrodes for zero-excess lithium metal batteries |
| 260 | _ | _ | |a London [u.a.] |c 2023 |b RSC |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 500 | _ | _ | |a Unterstützt durch BMBF Grants: MEET Hi-EnD III” (03XP0258A), “ProLiFest” (03XP0253A) und “AMaLiS” (03XP0125D) |
| 520 | _ | _ | |a In zero-excess lithium metal batteries (ZELMBs), also termed “anode-free” LMBs, Li from the positive electrode is electrodeposited onto a bare current collector instead of the Li metal negative electrode commonly used in LMBs. This enables high theoretical energy density and facile, safe, and low-cost assembly. To tackle coulombic inefficiencies during Li deposition/dissolution, 3D structured current collectors can be used instead of 2D foil materials. This study elucidates the Li deposition behavior in custom-made open-porous Cu micro-foams from nucleation to large scale deposition. For the first time in ZELMBs, surface and sub-surface Li deposits in open-porous 3D materials are compared to deposits on 2D foils using cryogenic focused ion beam scanning electron microscopy (cryo-FIB-SEM). The results highlight that Cu micro-foams can store substantial amounts of dendrite-free Li in their open-porous 3D structure, minimizing detrimental volume changes during Li deposition/dissolution. Electrochemical analyses and simulations reveal that current density distribution over the large surface area of the Cu micro-foams reduces the Li nucleation overvoltage by ≈40%. Also, charge/discharge cycling in ZELMBs shows increases in coulombic efficiency, capacity retention, and cycle life. Overall, this work explains how open-porous Cu micro-foam current collectors improve the Li deposition behavior to boost the cycling characteristics of ZELMBs. |
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| 700 | 1 | _ | |a Bela, Marlena M. |0 0000-0002-9741-2989 |b 1 |
| 700 | 1 | _ | |a Püttmann, Frederik |0 0009-0003-0948-6916 |b 2 |
| 700 | 1 | _ | |a Dohmann, Jan F. |0 0000-0001-9870-0766 |b 3 |
| 700 | 1 | _ | |a Bieker, Peter |0 P:(DE-Juel1)180777 |b 4 |
| 700 | 1 | _ | |a Börner, Markus |0 0000-0002-8468-773X |b 5 |
| 700 | 1 | _ | |a Winter, Martin |0 P:(DE-Juel1)166130 |b 6 |
| 700 | 1 | _ | |a Stan, Marian |0 P:(DE-Juel1)195878 |b 7 |e Corresponding author |u fzj |
| 773 | _ | _ | |a 10.1039/D3TA04060G |g Vol. 11, no. 33, p. 17828 - 17840 |0 PERI:(DE-600)2702232-8 |n 33 |p 17828 - 17840 |t Journal of materials chemistry / A |v 11 |y 2023 |x 2050-7488 |
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