How the Sodium Cations in Anode Affect the Performance of a Lithium-ion Battery
Large cations such as potassium ion (K<sup>+</sup>) and sodium ion (Na<sup>+</sup>) could be introduced into the lithium-ion (Li-ion) battery system during material synthesis or battery assembly. However, the effect of these cations on charge storage or electrochemical perfor...
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| Format: | Article |
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MDPI AG
2022-07-01
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| Series: | Batteries |
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| Online Access: | https://www.mdpi.com/2313-0105/8/8/78 |
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| author | Dan Shao Dewei Rao Aihua Wu Xiangyi Luo |
| author_facet | Dan Shao Dewei Rao Aihua Wu Xiangyi Luo |
| author_sort | Dan Shao |
| collection | DOAJ |
| description | Large cations such as potassium ion (K<sup>+</sup>) and sodium ion (Na<sup>+</sup>) could be introduced into the lithium-ion (Li-ion) battery system during material synthesis or battery assembly. However, the effect of these cations on charge storage or electrochemical performance has not been fully understood. In this study, sodium ion was taken as an example and introduced into the lithium titanium oxide (LTO) anode through the carboxymethyl cellulose (CMC) binder. After the charge/discharge cycles, these ions doped into the LTO lattice and improved both the lithium-ion diffusivity and the electronic conductivity of the anode. The sodium ion’s high concentration (>12.9%), however, resulted in internal doping of Na<sup>+</sup> into the LTO lattice, which retarded the transfer of lithium ions due to repulsion and physical blocking. The systematic study presented here shows that large cations with an appropriate concentration in the electrode would be beneficial to the electrochemical performance of the Li-ion battery. |
| first_indexed | 2024-03-09T04:41:24Z |
| format | Article |
| id | doaj.art-d8aaf97a6c4a4fe9b057a28ede7e9011 |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-03-09T04:41:24Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Batteries |
| spelling | doaj.art-d8aaf97a6c4a4fe9b057a28ede7e90112023-12-03T13:20:13ZengMDPI AGBatteries2313-01052022-07-01887810.3390/batteries8080078How the Sodium Cations in Anode Affect the Performance of a Lithium-ion BatteryDan Shao0Dewei Rao1Aihua Wu2Xiangyi Luo3Guangdong Key Laboratory of Battery Safety, Guangzhou Institute of Energy Testing, Guangzhou 511447, ChinaSchool of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, ChinaGuangdong Key Laboratory of Battery Safety, Guangzhou Institute of Energy Testing, Guangzhou 511447, ChinaGuangdong Key Laboratory of Battery Safety, Guangzhou Institute of Energy Testing, Guangzhou 511447, ChinaLarge cations such as potassium ion (K<sup>+</sup>) and sodium ion (Na<sup>+</sup>) could be introduced into the lithium-ion (Li-ion) battery system during material synthesis or battery assembly. However, the effect of these cations on charge storage or electrochemical performance has not been fully understood. In this study, sodium ion was taken as an example and introduced into the lithium titanium oxide (LTO) anode through the carboxymethyl cellulose (CMC) binder. After the charge/discharge cycles, these ions doped into the LTO lattice and improved both the lithium-ion diffusivity and the electronic conductivity of the anode. The sodium ion’s high concentration (>12.9%), however, resulted in internal doping of Na<sup>+</sup> into the LTO lattice, which retarded the transfer of lithium ions due to repulsion and physical blocking. The systematic study presented here shows that large cations with an appropriate concentration in the electrode would be beneficial to the electrochemical performance of the Li-ion battery.https://www.mdpi.com/2313-0105/8/8/78lithium-ion batteryLTO anodesodium dopinglithium-ion diffusivity |
| spellingShingle | Dan Shao Dewei Rao Aihua Wu Xiangyi Luo How the Sodium Cations in Anode Affect the Performance of a Lithium-ion Battery Batteries lithium-ion battery LTO anode sodium doping lithium-ion diffusivity |
| title | How the Sodium Cations in Anode Affect the Performance of a Lithium-ion Battery |
| title_full | How the Sodium Cations in Anode Affect the Performance of a Lithium-ion Battery |
| title_fullStr | How the Sodium Cations in Anode Affect the Performance of a Lithium-ion Battery |
| title_full_unstemmed | How the Sodium Cations in Anode Affect the Performance of a Lithium-ion Battery |
| title_short | How the Sodium Cations in Anode Affect the Performance of a Lithium-ion Battery |
| title_sort | how the sodium cations in anode affect the performance of a lithium ion battery |
| topic | lithium-ion battery LTO anode sodium doping lithium-ion diffusivity |
| url | https://www.mdpi.com/2313-0105/8/8/78 |
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