Understanding the Effect of Solid Electrocatalysts on Achieving Highly Energy‐Efficient Lithium–Oxygen Batteries
Nonaqueous lithium–oxygen (Li–O2) batteries are regarded as a promising electrochemical energy storage technology because of largely defeating commercial Li‐ion batteries on theoretical energy density. However, due to the electrically insulating property of Li2O2, a typical discharge product in Li–O...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2021-09-01
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| Series: | Advanced Energy & Sustainability Research |
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| Online Access: | https://doi.org/10.1002/aesr.202100045 |
| _version_ | 1818620278886891520 |
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| author | Jiantao Li Xuanxuan Bi Khalil Amine Jun Lu |
| author_facet | Jiantao Li Xuanxuan Bi Khalil Amine Jun Lu |
| author_sort | Jiantao Li |
| collection | DOAJ |
| description | Nonaqueous lithium–oxygen (Li–O2) batteries are regarded as a promising electrochemical energy storage technology because of largely defeating commercial Li‐ion batteries on theoretical energy density. However, due to the electrically insulating property of Li2O2, a typical discharge product in Li–O2 batteries, high overpotential is inevitable upon charge. Nonetheless, catalysts could regulate the electrochemical formation pathways of Li2O2, and its morphology is closely bound with the energy required to dissociate. Meanwhile, in addition to Li2O2, alternative discharge products with inherently low dissociation energy can be produced by specific catalysts. Here, fundamental oxygen reduction routes in Li–O2 batteries are focused on, catalyst‐dependent geometry formation of Li2O2 is presented, and geometry‐related charge kinetics are disscussed. Products formed under specific catalysts are further explored with an emphasis on LiO2. Future directions to in situ study the electrocatalytic mechanism are subsequently proposed, and an energy system design based on oxygen redox reactions is conceived to provide new perspectives for future electrochemical energy technologies. |
| first_indexed | 2024-12-16T17:50:51Z |
| format | Article |
| id | doaj.art-d2f97e166fea4c6d977b1e76a1326d78 |
| institution | Directory Open Access Journal |
| issn | 2699-9412 |
| language | English |
| last_indexed | 2024-12-16T17:50:51Z |
| publishDate | 2021-09-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Energy & Sustainability Research |
| spelling | doaj.art-d2f97e166fea4c6d977b1e76a1326d782022-12-21T22:22:19ZengWiley-VCHAdvanced Energy & Sustainability Research2699-94122021-09-0129n/an/a10.1002/aesr.202100045Understanding the Effect of Solid Electrocatalysts on Achieving Highly Energy‐Efficient Lithium–Oxygen BatteriesJiantao Li0Xuanxuan Bi1Khalil Amine2Jun Lu3Chemical Sciences and Engineering Division Argonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USAChemical Sciences and Engineering Division Argonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USAChemical Sciences and Engineering Division Argonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USAChemical Sciences and Engineering Division Argonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USANonaqueous lithium–oxygen (Li–O2) batteries are regarded as a promising electrochemical energy storage technology because of largely defeating commercial Li‐ion batteries on theoretical energy density. However, due to the electrically insulating property of Li2O2, a typical discharge product in Li–O2 batteries, high overpotential is inevitable upon charge. Nonetheless, catalysts could regulate the electrochemical formation pathways of Li2O2, and its morphology is closely bound with the energy required to dissociate. Meanwhile, in addition to Li2O2, alternative discharge products with inherently low dissociation energy can be produced by specific catalysts. Here, fundamental oxygen reduction routes in Li–O2 batteries are focused on, catalyst‐dependent geometry formation of Li2O2 is presented, and geometry‐related charge kinetics are disscussed. Products formed under specific catalysts are further explored with an emphasis on LiO2. Future directions to in situ study the electrocatalytic mechanism are subsequently proposed, and an energy system design based on oxygen redox reactions is conceived to provide new perspectives for future electrochemical energy technologies.https://doi.org/10.1002/aesr.202100045catalyst propertieslithium–oxygen batterieslithium peroxidelithium superoxideproduct geometry |
| spellingShingle | Jiantao Li Xuanxuan Bi Khalil Amine Jun Lu Understanding the Effect of Solid Electrocatalysts on Achieving Highly Energy‐Efficient Lithium–Oxygen Batteries Advanced Energy & Sustainability Research catalyst properties lithium–oxygen batteries lithium peroxide lithium superoxide product geometry |
| title | Understanding the Effect of Solid Electrocatalysts on Achieving Highly Energy‐Efficient Lithium–Oxygen Batteries |
| title_full | Understanding the Effect of Solid Electrocatalysts on Achieving Highly Energy‐Efficient Lithium–Oxygen Batteries |
| title_fullStr | Understanding the Effect of Solid Electrocatalysts on Achieving Highly Energy‐Efficient Lithium–Oxygen Batteries |
| title_full_unstemmed | Understanding the Effect of Solid Electrocatalysts on Achieving Highly Energy‐Efficient Lithium–Oxygen Batteries |
| title_short | Understanding the Effect of Solid Electrocatalysts on Achieving Highly Energy‐Efficient Lithium–Oxygen Batteries |
| title_sort | understanding the effect of solid electrocatalysts on achieving highly energy efficient lithium oxygen batteries |
| topic | catalyst properties lithium–oxygen batteries lithium peroxide lithium superoxide product geometry |
| url | https://doi.org/10.1002/aesr.202100045 |
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