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240805s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202405715
|2 doi
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|a pubmed24n1492.xml
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|a (DE-627)NLM375887113
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|a (NLM)39101286
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Jenkins, Max
|e verfasserin
|4 aut
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| 245 |
1 |
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|a A High Capacity Gas Diffusion Electrode for Li-O2 Batteries
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|c 2024
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 05.08.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2024 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.
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|a The very high theoretical specific energy of the lithium-air (Li-O2) battery (3500 Wh kg-1) compared with other batteries makes it potentially attractive, especially for the electrification of flight. While progress has been made in realizing the Li-air battery, several challenges remain. One such challenge is achieving a high capacity to store charge at the positive electrode at practical current densities, without which Li-air batteries will not outperform lithium-ion. The capacity is limited by the mass transport of O2 throughout the porous carbon positive electrode. Here it is shown that by replacing the binder in the electrode by a polymer with the intrinsic ability to transport O2, it is possible to reach capacities as high as 31 mAh cm-2 at 1 mA cm-2 in a 300 µm thick electrode. This corresponds to a positive electrode energy density of 2650 Wh L-1 and specific energy of 1716 Wh kg-1, exceeding significantly Li-ion batteries and previously reported Li-O2 cells. Due to the enhanced oxygen diffusion imparted by the gas diffusion polymer, Li2O2 (the product of O2 reduction on discharge) fills a greater volume fraction of the electrode and is more homogeneously distributed
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|a Journal Article
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|a gas diffusion electrode
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| 650 |
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4 |
|a high energy density
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| 650 |
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4 |
|a lithium‐oxygen battery
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| 700 |
1 |
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|a Dewar, Daniel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lagnoni, Marco
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Sixie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rees, Gregory J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bertei, Antonio
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Johnson, Lee R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Xiangwen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bruce, Peter G
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2024) vom: 05. Aug., Seite e2405715
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g year:2024
|g day:05
|g month:08
|g pages:e2405715
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|u http://dx.doi.org/10.1002/adma.202405715
|3 Volltext
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