Peng Libo

Bio: Peng Libo is an academic researcher from Fujian Normal University. The author has contributed to research in topics: Lithium. The author has co-authored 1 publications.

Influence of Binder on Impedance of Lithium Batteries: A Mini-review

Abstract: As an integral component of electrodes, binder is one of the key factors for improving of the performance and prolonging the service life of lithium batteries. To predict the service life of lithium batteries, observing the impedance evolution of batteries during the cycling process has been considered as a promising strategy. Electrochemical impedance spectroscopy as an effective measurement has been applied in numerous studies to explore the impedance behavior of lithium batteries. Therefore, this paper reviews the influencing factors of the impedance variation during charging and discharging processes and the influence of various binders on the impedance performance of lithium-ion batteries. Moreover, an outlook is proposed for the modification of binders to improve the performance of lithium-ion batteries.

Xanthan gum with double-helix structure as a novel aqueous binder to stabilize lithium-rich cathode

Abstract: Lithium-rich manganese-based cathode materials have the advantages of high specific capacity and operating voltage, but they still pose some problems such as poor cycle performance and serious voltage fading. Here, xanthan gum (XG) with double-helix structure has been investigated as a novel aqueous binder to improve the electrochemical performance of Li[Li0.2Co0.13Ni0.13Mn0.54]O2. When the mass proportion of XG is 5%, the prepared lithium-rich cathode shows the highest specific capacity and best cycle stability. After cycling, the discharge voltage of the lithium-rich cathode decreases by only 273 mV, indicating that XG can effectively inhibit the voltage fading of the lithium-rich material.

Boron‐Based High‐Performance Lithium Batteries: Recent Progress, Challenges, and Perspectives

Abstract: With the development of energy storage technology, the demand for high energy density and high security batteries is increasing, making the research of lithium battery (LB) technology an extremely important pursuit. However, the poor structural stability of electrode materials, high interfacial impedance between electrolyte and electrode, and the growth of lithium dendrites have seriously hindered the commercialization of LBs. Recently, due to their unique electronic structures and hybrid forms, boron‐based materials have been widely used in different LB components, such as electrodes, electrolytes, separators, additives, and binders, to resolve these problems. Here, a basic understanding of boron and boron‐based materials is first introduced. Subsequently, the recent research progress on the application of boron in each component of the LB is summarized, aiming to understand the hybrid forms of boron and their potential for use in LB materials. Finally, some new strategies and perspectives on the application of boron in LB materials are proposed. Here, the aim is to provide a clear insight on the study of boron in energy storage materials and contribute to the promotion of further research in this area.