Mesh‐Like Carbon Nanosheets with High‐Level Nitrogen Doping for High‐Energy Dual‐Carbon Lithium‐Ion Capacitors

Small ◽  
2019 ◽  
Vol 15 (15) ◽  
pp. 1805173 ◽  
Author(s):  
Zhao Li ◽  
Liujun Cao ◽  
Wei Chen ◽  
Zechuan Huang ◽  
Hao Liu
2019 ◽  
Vol 9 (14) ◽  
pp. 2787 ◽  
Author(s):  
Chunlian Wang ◽  
Yongchao Yu ◽  
Jiajia Niu ◽  
Yaxuan Liu ◽  
Denzel Bridges ◽  
...  

With the ever-increasing demand for power sources of high energy density and stability for emergent electrical vehicles and portable electronic devices, rechargeable batteries (such as lithium-ion batteries, fuel batteries, and metal–air batteries) have attracted extensive interests. Among the emerging battery technologies, metal–air batteries (MABs) are under intense research and development focus due to their high theoretical energy density and high level of safety. Although significant progress has been achieved in improving battery performance in the past decade, there are still numerous technical challenges to overcome for commercialization. Herein, this mini-review summarizes major issues vital to MABs, including progress on packaging and crucial manufacturing technologies for cathode, anode, and electrolyte. Future trends and prospects of advanced MABs by additive manufacturing and nanoengineering are also discussed.


2020 ◽  
Vol 359 ◽  
pp. 136898
Author(s):  
Cheng Yang ◽  
Jianguo Ren ◽  
Mingsen Zheng ◽  
Mengyan Zhang ◽  
Zheng Zhong ◽  
...  

2020 ◽  
Vol 50 ◽  
pp. 286-295 ◽  
Author(s):  
Meng Li ◽  
Jingyi Qiu ◽  
Songtong Zhang ◽  
Pengcheng Zhao ◽  
Zhaoqing Jin ◽  
...  

Carbon ◽  
2019 ◽  
Vol 142 ◽  
pp. 327-336 ◽  
Author(s):  
Longhai Zhang ◽  
Jingming Yue ◽  
Tong Wei ◽  
Zheng Liu ◽  
Jiali Zhou ◽  
...  

Author(s):  
Qianliang Zhang ◽  
Baojuan Xi ◽  
Shenglin Xiong ◽  
Yitai Qian

SiO based materials have attracted attention as a promising anode for practical application in lithium−ion batteries (LIBs) with high energy density. However, severe volume variation and poor conductivity hinder the...


2020 ◽  
Vol 349 ◽  
pp. 136303 ◽  
Author(s):  
Lina Kong ◽  
Li Su ◽  
Shuaiguo Hao ◽  
Wang Yang ◽  
Guangjie Shao ◽  
...  

2019 ◽  
Vol 3 (4) ◽  
pp. 1055-1065 ◽  
Author(s):  
Dong Li ◽  
Jing Shi ◽  
Haolin Liu ◽  
Chunyue Liu ◽  
Guanghe Dong ◽  
...  

A lithium-ion capacitor was fabricated by using T-Nb2O5/GCN anode and GCN cathode, which exhibits excellent energy/power density in 0–3.5 V and bridges the gap between batteries and supercapacitors.


2019 ◽  
Author(s):  
Georg Dewald ◽  
Saneyuki Ohno ◽  
Marvin Kraft ◽  
Raimund Koerver ◽  
Paul Till ◽  
...  

<p>All-solid-state batteries are often expected to replace conventional lithium-ion batteries in the future. However, the practical electrochemical and cycling stability of the best-conducting solid electrolytes, i.e. lithium thiophosphates, are still critical issues that prevent long-term stable high-energy cells. In this study, we use <i>stepwise</i><i>cyclic voltammetry </i>to obtain information on the practical oxidative stability limit of Li<sub>10</sub>GeP<sub>2</sub>S<sub>12</sub>, a Li<sub>2</sub>S‑P<sub>2</sub>S<sub>5</sub>glass, as well as the argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolytes. We employ indium metal and carbon black as the counter and working electrode, respectively, the latter to increase the interfacial contact area to the electrolyte as compared to the commonly used planar steel electrodes. Using a stepwise increase in the reversal potentials, the onset potential at 25 °C of oxidative decomposition at the electrode-electrolyte interface is identified. X‑ray photoelectron spectroscopy is used to investigate the oxidation of sulfur(-II) in the thiophosphate polyanions to sulfur(0) as the dominant redox process in all electrolytes tested. Our results suggest that after the formation of these decomposition products, significant redox behavior is observed. This explains previously reported redox activity of thiophosphate solid electrolytes, which contributes to the overall cell performance in solid-state batteries. The <i>stepwise cyclic voltammetry</i>approach presented here shows that the practical oxidative stability at 25 °C of thiophosphate solid electrolytes against carbon is kinetically higher than predicted by thermodynamic calculations. The method serves as an efficient guideline for the determination of practical, kinetic stability limits of solid electrolytes. </p>


Sign in / Sign up

Export Citation Format

Share Document