scholarly journals Emerging polyanionic and organic compounds for high energy density, non-aqueous potassium-ion batteries

2020 ◽  
Vol 8 (32) ◽  
pp. 16061-16080 ◽  
Author(s):  
Mingzhe Chen ◽  
Qiannan Liu ◽  
Yanyan Zhang ◽  
Guichuan Xing ◽  
Shu-Lei Chou ◽  
...  
Keyword(s):  
Energy Density ◽  
Organic Compounds ◽  
State Of The Art ◽  
High Energy ◽  
Potassium Ion ◽  
The State ◽  
High Energy Density

This review focuses on the state-of-the-art development of emerging polyanionic and organic compounds to achieve high energy density of non-aqueous potassium-ion batteries.

scholarly journals A Review of Size Engineering-Enabled Electrocatalysts for Li–S Chemistry

2021 ◽  
Author(s):  
Xi Zhang ◽  
Yaping Zhang ◽  
xijun wei ◽  
Chaohui Wei ◽  
Yingze Song
Keyword(s):  
Energy Density ◽  
High Energy ◽  
The State ◽  
High Energy Density ◽  
State Of Art

Li–S batteries (LBSs) have received extensive attention owing to their remarkable theoretical capacity (1672 mA h g–1) and high energy density (2600 Wh kg–1), far beyond the state of art...

High-energy-density lithium-ion battery using a carbon-nanotube–Si composite anode and a compositionally graded Li[Ni0.85Co0.05Mn0.10]O2 cathode

2016 ◽  
Vol 9 (6) ◽  
pp. 2152-2158 ◽  
Author(s):  
Joo Hyeong Lee ◽  
Chong S. Yoon ◽  
Jang-Yeon Hwang ◽  
Sung-Jin Kim ◽  
Filippo Maglia ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Energy Density ◽  
Lithium Ion Battery ◽  
State Of The Art ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Rechargeable Battery ◽  
Composite Anode ◽  
Battery System

A Li-rechargeable battery system based on state-of-the-art cathode and anode technologies demonstrated high energy density, meeting demands for vehicle application.

Manganese phosphoxide/Ni5P4 hybrids as an anode material for high energy density and rate potassium-ion storage

2021 ◽  
Author(s):  
Sen Yang ◽  
Ting Li ◽  
Yiwei Tan
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Large Scale ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Potassium Ion ◽  
High Energy Density ◽  
Active Materials ◽  
Ion Storage

Potassium-ion batteries (PIBs) that serve as low-cost and large-scale secondary batteries are regarded as promising alternatives and supplement to lithium-ion batteries. Hybrid active materials can be featured with the synergistic...

Graphene encircled KFeSO4F cathode composite for high energy density potassium-ion batteries

2020 ◽  
Vol 56 (69) ◽  
pp. 10050-10053
Author(s):  
Jiemin Dong ◽  
Jiaying Liao ◽  
Xiaodong He ◽  
Qiao Hu ◽  
Yifan Yu ◽  
...  
Keyword(s):  
Energy Density ◽  
Ball Milling ◽  
Solvothermal Method ◽  
High Energy ◽  
Milling Process ◽  
Potassium Ion ◽  
High Energy Density ◽  
Ball Milling Process ◽  
Facile Solvothermal Method

Graphene-decorated KFeSO4F material is synthesized via a facile solvothermal method combined with a ball-milling process.

Potassium Nickel Iron Hexacyanoferrate as Ultra-Long-Life Cathode Material for Potassium-Ion Batteries with High Energy Density

ACS Nano ◽  
2020 ◽  
Vol 14 (8) ◽  
pp. 9807-9818 ◽  
Author(s):  
Shaokun Chong ◽  
Jing Yang ◽  
Lan Sun ◽  
Shengwu Guo ◽  
Yongning Liu ◽  
...  
Keyword(s):  
Energy Density ◽  
Cathode Material ◽  
High Energy ◽  
Potassium Ion ◽  
High Energy Density ◽  
Nickel Iron ◽  
Long Life

scholarly journals A General Self-Sacrifice Template Strategy to 3D Heteroatom-Doped Macroporous Carbon for High-Performance Potassium-Ion Hybrid Capacitors

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Junwei Li ◽  
Xiang Hu ◽  
Guobao Zhong ◽  
Yangjie Liu ◽  
Yaxin Ji ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Density Functional ◽  
High Energy ◽  
Potassium Ion ◽  
High Energy Density ◽  
Capacitance Performance ◽  
Hybrid Capacitors ◽  
Co Doped ◽  
Macroporous Carbon

AbstractPotassium-ion hybrid capacitors (PIHCs) tactfully combining capacitor-type cathode with battery-type anode have recently attracted increasing attentions due to their advantages of decent energy density, high power density, and low cost; the mismatches of capacity and kinetics between capacitor-type cathode and battery-type anode in PIHCs yet hinder their overall performance output. Herein, based on prediction of density functional theory calculations, we find Se/N co-doped porous carbon is a promising candidate for K+ storage and thus develop a simple and universal self-sacrifice template method to fabricate Se and N co-doped three-dimensional (3D) macroporous carbon (Se/N-3DMpC), which features favorable properties of connective hierarchical pores, expanded interlayer structure, and rich activity site for boosting pseudocapacitive activity and kinetics toward K+ storage anode and enhancing capacitance performance for the reversible anion adsorption/desorption cathode. As expected, the as-assembled PIHCs full cell with a working voltage as high as 4.0 V delivers a high energy density of 186 Wh kg−1 and a power output of 8100 W kg−1 as well as excellent long service life. The proof-of-concept PIHCs with excellent performance open a new avenue for the development and application of high-performance hybrid capacitors.

scholarly journals Perspectives and challenges for lead-free energy-storage multilayer ceramic capacitors

2021 ◽  
Vol 10 (6) ◽  
pp. 1153-1193
Author(s):  
Peiyao Zhao ◽  
Ziming Cai ◽  
Longwen Wu ◽  
Chaoqiong Zhu ◽  
Longtu Li ◽  
...  
Keyword(s):  
Free Energy ◽  
High Temperature ◽  
Energy Storage ◽  
Energy Density ◽  
State Of The Art ◽  
High Energy ◽  
High Energy Density ◽  
Lead Free ◽  
Multilayer Ceramic Capacitors ◽  
Multilayer Ceramic

AbstractThe growing demand for high-power-density electric and electronic systems has encouraged the development of energy-storage capacitors with attributes such as high energy density, high capacitance density, high voltage and frequency, low weight, high-temperature operability, and environmental friendliness. Compared with their electrolytic and film counterparts, energy-storage multilayer ceramic capacitors (MLCCs) stand out for their extremely low equivalent series resistance and equivalent series inductance, high current handling capability, and high-temperature stability. These characteristics are important for applications including fast-switching third-generation wide-bandgap semiconductors in electric vehicles, 5G base stations, clean energy generation, and smart grids. There have been numerous reports on state-of-the-art MLCC energy-storage solutions. However, lead-free capacitors generally have a low-energy density, and high-energy density capacitors frequently contain lead, which is a key issue that hinders their broad application. In this review, we present perspectives and challenges for lead-free energy-storage MLCCs. Initially, the energy-storage mechanism and device characterization are introduced; then, dielectric ceramics for energy-storage applications with aspects of composition and structural optimization are summarized. Progress on state-of-the-art energy-storage MLCCs is discussed after elaboration of the fabrication process and structural design of the electrode. Emerging applications of energy-storage MLCCs are then discussed in terms of advanced pulsed power sources and high-density power converters from a theoretical and technological point of view. Finally, the challenges and future prospects for industrialization of lab-scale lead-free energy-storage MLCCs are discussed.

scholarly journals High-Energy-Density Flexible Potassium-Ion Battery Based on Patterned Electrodes

Joule ◽  
2018 ◽  
Vol 2 (4) ◽  
pp. 736-746 ◽  
Author(s):  
Yun-Hai Zhu ◽  
Xu Yang ◽  
Di Bao ◽  
Xiao-Fei Bie ◽  
Tao Sun ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
Potassium Ion ◽  
High Energy Density ◽  
Patterned Electrodes

A high energy density and high rate capability flexible supercapacitor based on electro-spun highly porous SnO2@carbon nanofibers

2020 ◽  
Vol 8 (30) ◽  
pp. 15110-15121 ◽  
Author(s):  
Rasmita Barik ◽  
Vaishali Tanwar ◽  
Rajat Kumar ◽  
Pravin P. Ingole
Keyword(s):  
Energy Density ◽  
State Of The Art ◽  
Rate Capability ◽  
High Energy ◽  
High Rate ◽  
High Energy Density ◽  
High Rate Capability ◽  
Flexible Supercapacitor ◽  
Main Challenge ◽  
Highly Porous

The energy density of the present state-of-the-art materials remains the main challenge for commercial utilization of supercapacitor devices.

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