{"id":207975,"date":"2021-03-22T14:57:18","date_gmt":"2021-03-22T11:57:18","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/novel-cathode-designed-for-high-performance-sodium-ion-batteries\/"},"modified":"2021-03-22T14:57:18","modified_gmt":"2021-03-22T11:57:18","slug":"novel-cathode-designed-for-high-performance-sodium-ion-batteries","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/novel-cathode-designed-for-high-performance-sodium-ion-batteries\/","title":{"rendered":"#Novel cathode designed for high-performance sodium ion batteries"},"content":{"rendered":"

“#Novel cathode designed for high-performance sodium ion batteries<\/strong>”<\/p>\n

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Due to their large-scale energy storage, sodium ion batteries (SIBs) are a promising alternative to lithium-ion batteries (LIBs). However, it’s challenging to develop high-energy and high-power SIBs due to the greater atomic mass and larger ionic radius.<\/p>\n

Electrode architecture design with high mass loading of active materials is a more straightforward strategy to achieve high energy. It can increase the percentage of active materials and consequently energy density at device\/cell levels.<\/p>\n

Recently, a research group led by Prof. Li Xianfeng and Dr. Zheng Qiong from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Science<\/a>s (CAS) designed and optimized a low-tortuosity and high-areal-capacity cathode for high-rate and ultra-stable SIBs.<\/p>\n

The results were published in Advanced Energy Materials<\/i> on March 18. <\/p>\n

The researchers proposed a low-tortuosity, finger-like composite electrode with ultra-high mass loading based on nonsolvent-induced phase separation method, which could offer well-pleasing electron\/ion transport pathway and relatively low battery resistance.<\/p>\n

Benefiting from the structural advantages, they obtained the as-prepared electrode with ultra-high mass loading (60 mg\/cm2<\/sup>) and areal capacity (4.0 mAh\/cm2<\/sup>). Even at a high rate of 10 C, the areal capacity remained 1.0 mAh\/cm2<\/sup>.<\/p>\n

The researchers also illustrated the homogeneous Na+ distribution, gentle and uniform local current density and polarization inside the as-prepared electrode.<\/p>\n

Combining numerical simulations and experiments, they revealed that the low-tortuosity architecture could contribute to an impressive ion transport capability and consequently significant improvements in electrochemical performance.<\/p>\n

This study exhibits a prospective solution for design and optimization of the low-tortuosity electrodes with ultra-high mass loading, which opens a new avenue for developing advanced SIBs with high energy\/power density.\n <\/p>\n\n

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New electrode configuration improves volumetric performance of supercapacitors<\/a>\n <\/div>\n

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\n More information:<\/strong>
\n Zhiqiang Lv et al. Controllable Design Coupled with Finite Element Analysis of Low\u2010Tortuosity Electrode Architecture for Advanced Sodium\u2010Ion Batteries with Ultra\u2010High Mass Loading, Advanced Energy Materials<\/i> (2021). DOI: 10.1002\/aenm.202003725<\/a><\/p><\/div>\n
\n Provided by
\n Chinese Academy of Sciences
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Citation<\/strong>:
\n Novel cathode designed for high-performance sodium ion batteries (2021, March 22)
\n retrieved 22 March 2021
\n from https:\/\/techxplore.com\/news<\/a>\/2021-03-cathode-high-performance-sodium-ion-batteries.html<\/p>\n

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