{"id":152731,"date":"2021-01-12T19:00:04","date_gmt":"2021-01-12T16:00:04","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/can-sodium-ion-batteries-replace-trusty-lithium-ion-ones\/"},"modified":"2021-01-12T19:00:04","modified_gmt":"2021-01-12T16:00:04","slug":"can-sodium-ion-batteries-replace-trusty-lithium-ion-ones","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/can-sodium-ion-batteries-replace-trusty-lithium-ion-ones\/","title":{"rendered":"#Can sodium-ion batteries replace trusty lithium-ion ones?"},"content":{"rendered":"

“#Can sodium-ion batteries replace trusty lithium-ion ones?<\/strong>”<\/p>\n

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\n In App<\/a>lied Physics Reviews, researchers in China describe how they applied basic physical concepts of atomic scale to build high-performance anodes for sodium-ion batteries.This image shows a homemade softpack sodium-ion battery they made. Credit: Jiangping Tu, Yuqian Li, Liyuan Zhang, Xiuli Wang, Xinhui Xia, Dong Xie, and Changdong Gu
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Sodium-ion batteries are a potential replacement for lithium batteries, but the anodes\u2014positively charged electrodes\u2014that work well for lithium-ion batteries don’t provide the same level of performance for sodium-ion batteries.<\/p>\n

Amorphous carbon, which lacks a crystalline structure, is known to be a useful anode, because it has defects and voids that can be used to store sodium ions. Nitrogen\/phosphorus-doped carbon also offers appealing electrical properties.<\/p>\n

In Applied Physics Reviews<\/i>, researchers in China from Zhejiang University, Ningbo University, and Dongguan University of Technology<\/a> describe how they applied basic physical concepts of atomic scale to build high-performance anodes for sodium-ion batteries.<\/p>\n

“Recent studies have shown that doped amorphous carbon, especially electron-rich element-doped amorphous carbon, is a good anode for sodium storage,” said Tu. “But there was no common explanation for how sodium storage works or the doping effect of doped carbon.”<\/p>\n

On a quest for answers, the researchers used the concept of energy level orbitals to explain the affinity of pyrrolic nitrogen and a phosphorus-oxygen bond, their atomic interaction, electron distribution, and electron cloud configuration.<\/p>\n

To get a closer look at distinct storage behavior, they applied first principles calculations, which is a method that uses basic physical quantities to calculate physical properties. It is based on electron density function, a concept of quantum mechanics that can reveal a crystal’s molecular structure.<\/p>\n

When they analyzed the electron distribution, system chemical parameters, and adsorption energies of sodium ions embedded within modified carbon materials, they found that pyrrolic nitrogen and phosphorus-oxygen bonds show real potential for sodium storage.<\/p>\n

“Sodium ions tend to be stored within these two structures,” Tu said.<\/p>\n

The researchers designed a hydrothermal treatment to build the precursor of a phosphorus-oxygen structure, then doped a carbon anode with the dual electron-rich elements. It shows “enhanced electrochemical performance in cycle life and capacity for batteries,” said Tu.<\/p>\n

Their anode achieved a life cycle of 5,000 cycles, with an enhanced capacity of 220 milliampere hours\/gram, and reduced capacity loss (0.003%\/cycle).<\/p>\n

“Our work fills the theoretical gap about the sodium storage behavior of electron-rich element-doped amorphous carbon and provides the experimental basis for using carbon,” said Tu. “We provide directions to modify carbon materials for large-scale sodium-ion batteries.”\n <\/p>\n\n

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Making sodium-ion batteries that last<\/a>\n <\/div>\n

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\n More information:<\/strong>
\n “Sodium storage behavior of electron-rich element-doped amorphous carbon” Applied Physics Reviews<\/i>, aip.scitation.org\/doi\/10.1063\/5.0029686<\/a><\/p><\/div>\n
\n Provided by
\n American Institute of Physics
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Citation<\/strong>:
\n Can sodium-ion batteries replace trusty lithium-ion ones? (2021, January 12)
\n retrieved 12 January 2021
\n from https:\/\/techxplore.com\/news<\/a>\/2021-01-sodium-ion-batteries-trusty-lithium-ion.html<\/p>\n

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