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Charactering and optimizing cathode electrolytes interface for advanced rechargeable batteries:Promises and challenges

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Green Energy & Environment 2022年第4期7卷 606-635页

作者： Zhongyang Zhang Xinran Wang Ying Bai Chuan Wu Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science&EngineeringBeijing Institute of TechnologyBeijingChina Yangtze Delta Region Academy of Beijing Institute of Technology Jiaxing314019China

With the advancement of secondary batteries,interfacial properties of electrode materials have been recognized as essential factors to their electrochemical ***,the majority of investigations are devoted into advanced electrode materials synthesis,while there is insufficient attention paid to regulate their *** this regard,the solid electrolyte interphase(SEI)at anode part has been studied for 40 years,already achieving remarkable outcomes on improving the stability of anode ***,the study on the cathode electrolyte interfaces(CEI)remains in infancy,which constitutes a potential restriction to the capacity contribution,stability and safety of *** fact,the native CEI generally possesses unfavorable characteristics against structural and compositional stability that requires demanding optimization ***,an in-depth understanding of the CEI is of great significance to guide the optimization principles in terms of composition,structure,growth mechanism,and electrochemical *** this literature,recent progress and advances of the CEI characterization methods and optimization protocols are summarized,and meanwhile the mutually-reinforced mechanisms between detection and modification are *** criteria and the potential development of the CEI characterization are proposed with insights of novel optimization directions.

关键词： Cathode electrolyte interface secondary battery Characterization methods In situ/operando Synchrotron radiation

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Multi-electron Reaction Materials for High-Energy-Density secondary Batteries:Current Status and Prospective

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Electrochemical Energy Reviews 2021年第1期4卷 35-66页

作者： Xinran Wang Guoqiang Tan Ying Bai Feng Wu Chuan Wu Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China Experimental Center of Materials Sciences and Engineering Beijing Institute of TechnologyBeijing 100081China

To address increasing energy supply challenges and allow for the effective utilization of renewable energy sources,transformational and reliable battery chemistry are critically needed to obtain higher energy ***,significant progress has been made in the past few decades in energetic battery systems based on the concept of multi-electron reactions to overcome existing barriers in conventional battery research and *** a result,a systematic understanding of multi-electron chemistry is essential for the design of novel multi-electron reaction materials and the enhancement of corresponding battery *** on this,this review will briefly present the advancements of multi-electron reaction materials from their evolutionary discovery from lightweight elements to the more recent multi-ion *** addition,this review will discuss representative multi-electron reaction chemistry and materials,including ferrates,metal borides,metal oxides,metal fluorides,lithium transition metal oxides,silicon,sulfur and ***,insertion-type,alloy-type and conversion-type multi-electron chemistry involving monovalent Li^(+) and Na^(+) cations,polyvalent Mg^(2+) and Al^(3+) cations beyond those of alkali metals as well as activated S^(2−) and O^(2−) anions are introduced in the enrichment and development of multi-electron reactions for electrochemical energy storage ***,this review will present the ongoing challenges and underpinning mechanisms limiting the performance of multi-electron reaction materials and corresponding battery systems.

关键词： Multi-electron reaction Multi-ion effect Lightweight element secondary battery Energy density

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A Novel Application of Lithium Heteropoly Blue as Non-aqueous Electrolyte in Polyacenic Semiconductor-Li secondary Batteries

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Chemical Research in Chinese Universities 2003年第1期19卷 10-14页

作者： WANG Xiu-li XIN Ming-hong 等 DepartmentofChemistry NortheastNormaluniversityChangchun130024P.R.China DepartmentofChemistry JilinUniversityChangchun130023P.R.China

Lithium heteropoly blue(Li 5PW Ⅵ 10 W Ⅴ 2O 40 ) was used as a non aqueous electrolyte in the polyacenic semiconductor (PAS) Li secondary battery instead of LiClO 4. The properties of the PAS Li secondary battery, especially the effect of Li 5PW Ⅵ 10 W Ⅴ 2O 40 on the capacity, the cycle property and the self discharging of the battery have been investigated. The results indicate that not only Li 5PW Ⅵ 10 W Ⅴ 2O 40 can overcome the disadvantages of LiClO 4, which is apt to explode when heated or rammed, but also the PAS Li secondary battery assembled with the novel electrolyte has a larger capacity and smaller self discharging than that assembled with LiClO 4. Therefore, it is believed that lithium heteropoly blue is a better and novel electrolyte for the PAS secondary battery and exhibits significant and practical application.

关键词： Lithium heteropoly blue Non aqueous electrolyte Polyacenic semiconductor secondary battery

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Electocbemical Process of Ti-Ni Alloy Electrodes by Cyclic Voltammetry

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Rare Metals 1993年第1期12卷 30-33页

作者：赵建民李国勋 General Research Institute for Non-ferrous Metals Beijing China 100088

The electrochemical process of Ti-Ni alloy electrode was studied by using cyclic voltammetry. The hydrogen-absorbing electrode could be approximately regarded as a reversible hydrogen elecrede. The con- trolling steps of the discharging process varying with the anodic overpotentials were investigated and the effect ofelecrode constituent modification or Zr adulteation on the electrochemical behavior was also studied.

关键词： Electrochemical process Ti-Ni alloy Hydrogen storage material Hydrogen electrode secondary battery Ni-H battery

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