Ice‐Templated, Sustainable Carbon Aerogels with Hierarchically Tailored Channels for Sodium‐ and Potassium‐Ion Batteries

In next-generation rechargeable batteries, sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs) have been considered as attractive alternatives to lithium-ion batteries due to their cost competitiveness. Anodes with complicated electrochemical mechanisms...

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Challenges and future perspectives on sodium and potassium ion batteries for grid-scale energy storage

Materials Today ◽

10.1016/j.mattod.2021.03.015 ◽

2021 ◽

Author(s):

Wenchao Zhang ◽

Jun Lu ◽

Zaiping Guo

Keyword(s):

Energy Storage ◽

Potassium Ion ◽

Future Perspectives ◽

Sodium And Potassium

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Recent Developments of Antimony-Based Anodes for Sodium- and Potassium-Ion Batteries

Transactions of Tianjin University ◽

10.1007/s12209-021-00304-9 ◽

2021 ◽

Author(s):

Bochao Chen ◽

Ming Liang ◽

Qingzhao Wu ◽

Shan Zhu ◽

Naiqin Zhao ◽

...

Keyword(s):

Structural Characteristics ◽

Low Cost ◽

Potassium Ion ◽

Research Progress ◽

Research Directions ◽

Weak Charge ◽

Recent Developments ◽

High Theoretical Capacity ◽

Further Development ◽

Sodium And Potassium

AbstractThe development of sodium-ion (SIBs) and potassium-ion batteries (PIBs) has increased rapidly because of the abundant resources and cost-effectiveness of Na and K. Antimony (Sb) plays an important role in SIBs and PIBs because of its high theoretical capacity, proper working voltage, and low cost. However, Sb-based anodes have the drawbacks of large volume changes and weak charge transfer during the charge and discharge processes, thus leading to poor cycling and rapid capacity decay. To address such drawbacks, many strategies and a variety of Sb-based materials have been developed in recent years. This review systematically introduces the recent research progress of a variety of Sb-based anodes for SIBs and PIBs from the perspective of composition selection, preparation technologies, structural characteristics, and energy storage behaviors. Moreover, corresponding examples are presented to illustrate the advantages or disadvantages of these anodes. Finally, we summarize the challenges of the development of Sb-based materials for Na/K-ion batteries and propose potential research directions for their further development.

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The study of sodium and potassium channel gene single-nucleotide variation significance in non-mechanical forms of epilepsy

Egyptian Journal of Medical Human Genetics ◽

10.1186/s43042-020-00123-y ◽

2021 ◽

Vol 22 (1) ◽

Author(s):

Ozada Khamdiyeva ◽

Zhanerke Tileules ◽

Gulminyam Baratzhanova ◽

Anastassiya Perfilyeva ◽

Leyla Djansugurova

Keyword(s):

Ion Channel ◽

Potassium Channel ◽

De Novo ◽

Potassium Ion ◽

Dravet Syndrome ◽

De Novo Mutations ◽

Single Nucleotide ◽

Channel Gene ◽

Sodium And Potassium ◽

Potassium Channel Gene

Abstract Background Epilepsy is one of the most common and heterogeneous neurological diseases. The main clinical signs of the disease are repeated symptomatic or idiopathic epileptic seizures of both convulsive and non-convulsive nature that develop against a background of lost or preserved consciousness. The genetic component plays a large role in the etiology of idiopathic forms of epilepsy. The study of the molecular genetic basis of neurological disorders has led to a rapidly growing number of gene mutations known to be involved in hereditary ion channel dysfunction. The aim of this research was to evaluate the involvement of single-nucleotide variants that modify the function of genes (SCN1A, KCNT1, KCNTС1, and KCNQ2) encoding sodium and potassium ion channel polypeptides in the development of epilepsy. Results De novo mutations in the sodium channel gene SCN1A c.5347G>A (p. Ala1783Thr) were detected in two patients with Dravet syndrome, with a deletion in exon 26 found in one. Three de novo mutations in the potassium channel gene KCNT1 c.2800G>A (p. Ala934Thr), were observed in two patients with temporal lobe epilepsy (TLE) and one patient with residual encephalopathy. Moreover, a control cohort matched to the case cohort did not reveal any SNVs among conditionally healthy individuals, supporting the pathogenic significance of the studied SNVs. Conclusion Our results are supported by literature data showing that the sodium ion channel gene SCN1A c.5347G>A mutation may be involved in the pathogenesis of Dravet syndrome. We also note that the c.2800G>A mutation in the potassium channel gene KCNT1 can cause not only autosomal dominant nocturnal frontal lobe epilepsy (ADNFLE) but also other forms of epilepsy. To treat pathogenetic mutations that accelerate the function of sodium and potassium ion channels, we recommend ion channel blockade drug therapy.

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