Author
Chunhai Jiang
Bio: Chunhai Jiang is an academic researcher from Xiamen University of Technology. The author has contributed to research in topics: Anode & Cathode. The author has an hindex of 7, co-authored 16 publications receiving 114 citations.
Topics: Anode, Cathode, Ion, Photodegradation, Layered double hydroxides
Papers
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TL;DR: In this article, the hierarchical porous carbons with high specific surface area and large mesoporosity are successfully prepared from leftover rice, a common meal surplus, benefiting from its unique swelled structure and the activation effect of potassium hydroxide.
38 citations
TL;DR: In this article, Li4Ti5O12/activated carbon hybrid anodes were used for Li-ion capacitors with copolymerized resorcinol and hexamethylenetetetramine loaded by lithium acetate and tetrabutyl titanate.
28 citations
TL;DR: In this paper, the texture properties of porous carbons were tuned by combining element incorporation and reactive chemical activations, which could be potentially used to fabricate high performance carbonaceous electrode materials for electrochemical energy storage devices.
21 citations
TL;DR: Wurtzite Zinc-gallium oxynitrides (ZnGaNO) particles were synthesized by nitridation of Zn/Ga/CO3 layered double hydroxides (LDHs) using three different coprecipitation methods, called Decreasing-pH method, Constant-p H method, and Increasing-PH Method, respectively as discussed by the authors.
20 citations
TL;DR: In this paper, the phase and microstructural evolutions of a designated Nb-W-O compound during sintering as well as its possible application in Li-ion hybrid capacitors have not been reported.
15 citations
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326 citations
TL;DR: In this paper, the most recent advances in visible-light driven photodegradation of organic pollutants using LDHs based materials with emphasis on the manipulation of their morphological, compositional, and electronic properties and the mechanistic understandings of the photocatalytic processes.
255 citations
TL;DR: A comprehensive comparison of the current pre-lithiation methods is provided and the prospects and challenges of these methods from both a fundamental and a practical point of view are proposed.
Abstract: Lithium ion capacitors (LICs) can generally deliver higher energy density than supercapacitors (SCs) and have much higher power density and longer cycle life than lithium ion batteries (LIBs). Due to their great potential to bridge the gap between SCs and LIBs, LICs are becoming important electrochemical energy storage systems in the field of energy storage and conversion. Although it is generally accepted that pre-lithiation technologies are indispensable for the operation of LICs, no comprehensive overview of the existing pre-lithiation technologies has been conducted. In this progress report, we first classify LICs according to their energy storage mechanisms and discuss the multiple roles that the pre-lithiation technologies play for improving the performance of LICs. Then, we present the existing pre-lithiation methods used in LICs in detail and the current research progress is summarized. Finally, we provide a comprehensive comparison of the current pre-lithiation methods and propose the prospects and challenges of these methods from both a fundamental and a practical point of view. The broader impact of pre-lithiation technologies on next-generation LIBs is also discussed. This progress report aims at providing the fundamental knowledge necessary to researchers who are new to studying LICs and also serves as a guideline for senior researchers in the fields of LICs and LIBs for future research directions.
123 citations
TL;DR: Major impactful work is outlined, promising research directions, and various performance-optimizing strategies, as well as the energy storage mechanisms investigated by combining theoretical calculations and various electrochemical characterization techniques are presented.
Abstract: Niobium-based oxides including Nb2 O5 , TiNbx O2+2.5x compounds, M-Nb-O (M = Cr, Ga, Fe, Zr, Mg, etc.) family, etc., as the unique structural merit (e.g., quasi-2D network for Li-ion incorporation, open and stable Wadsley- Roth shear crystal structure), are of great interest for applications in energy storage systems such as Li/Na-ion batteries and hybrid supercapacitors. Most of these Nb-based oxides show high operating voltage (>1.0 V vs Li+ /Li) that can suppress the formation of solid electrolyte interface film and lithium dendrites, ensuring the safety of working batteries. Outstanding rate capability is impressive, which can be derived from their fast intercalation pseudocapacitive kinetics. However, the intrinsic poor electrical conductivity hinders their energy storage applications. Various strategies including structure optimization, surface engineering, and carbon modification are effectively used to overcome the issues. This review provides a comprehensive summary on the latest progress of Nb-based oxides for advanced electrochemical energy storage applications. Major impactful work is outlined, promising research directions, and various performance-optimizing strategies, as well as the energy storage mechanisms investigated by combining theoretical calculations and various electrochemical characterization techniques. In addition, challenges and perspectives for future research and commercial applications are also presented.
117 citations
TL;DR: A brief review about recent progress and new understanding about the assembly of CSCs with high energy density and the opportunities and challenges are elaborated in the hope of guiding the promising direction for the design of high-energy C SCs.
Abstract: Carbon based supercapacitors (CSCs), with high output power and long lifespan, are considered as promising power sources for modern electronic devices. The rush to find new approaches for optimizing their electrochemical behaviors is still vibrant, and particularly, widespread enthusiasm was focused on improving the energy density of CSCs through improving the specific capacitance and expanding the operating voltage. In this regard, this article provides a brief review about recent progress and new understanding about the assembly of CSCs with high energy density. Novel applied strategies were highlighted and discussed from the aspects of electrolyte, electrodes, and device modulation. Dynamic and mechanism factors associated with the energy storage process of CSCs are particularly emphasized. Finally, the opportunities and challenges are elaborated in the hope of guiding the promising direction for the design of high-energy CSCs.
85 citations