The rational design of a redox-active mixed ion/electron conductor as a multi-functional binder for lithium-ion batteries

Author(s):  
Chihyun Hwang ◽  
Jungho Lee ◽  
Jihong Jeong ◽  
Eunryeol Lee ◽  
Jonghak Kim ◽  
...  

A redox-active mixed ion and electron conductor (redox-active MIEC) is presented as a binder. High capacity was guaranteed, particularly at high rates due to its MIEC nature, while an additional capacity was achieved from its redox activity.

2019 ◽  
Vol 55 (3) ◽  
pp. 361-364 ◽  
Author(s):  
Donghee Gueon ◽  
Jun Hyuk Moon

We report simple yet rationally designed, polydopamine-wrapped, silicon nanoparticle-impregnated macroporous CNT particles for high-capacity lithium-ion batteries.


Author(s):  
Fei Zhang ◽  
Tao Jing ◽  
Shao Cai ◽  
Mingsen Deng ◽  
Dongmei Liang ◽  
...  

Rational design of high-performance anode materials is of paramount importance for developing rechargeable lithium ion batteries (LIBs) and sodium ion batteries (SIBs). In this work, ZrC2 monolayer is predicted by...


RSC Advances ◽  
2016 ◽  
Vol 6 (76) ◽  
pp. 72008-72014 ◽  
Author(s):  
Na Feng ◽  
Xiaolei Sun ◽  
Hongwei Yue ◽  
Deyan He

Uniform-sized Ni embedded NiO nanospheres exhibit a high capacity of 453 mA h g−1 (12C) and 800 mA h g−1 (0.2C) after 300 cycles.


2021 ◽  
Author(s):  
Xiaoming He ◽  
Xiujuan Wang ◽  
Wenhao Xue ◽  
Guangyuan Gao ◽  
Ling Chen ◽  
...  

Development of novel organics that exhibit multiple and stable redox states, limited solubility and improved conductivity is a highly rewarding direction for improving the performance of lithium-ion batteries (LIBs). As biologically derived organic molecules, carbonylpyridinium compounds have desirable and tunable redox properties, making them suitable candidates for battery applications. In this work, we report a structural evolution of carbonylpyridinium-based redox-active organics, from 2-electron accepting BMP to 4-electron accepting small, conjugated molecules (1, 2), and then to the corresponding conjugated polymers (CP1, CP2). Through suppression of dissolution and increasing electrochemical conductivity, the LIBs performance can be gradually enhanced. At a relatively high current of 0.5 A g-1, high specific capacities for 1 (100 mAh g-1), 2 (260 mAh g-1), CP1 (360 mAh g-1) and CP2 (540 mAh g-1) can be reached after 240 cycles. Particularly, the rate performance and cycling stability of CP2 surpasses many reported commercial inorganic and organic electrode materials. This work provides a promising new carbonylpyridinium-based building block featured with multiple redox centers, on the way to high performance Li-organic batteries.


2015 ◽  
Vol 3 (27) ◽  
pp. 14109-14115 ◽  
Author(s):  
Zhaohui Wang ◽  
Chao Xu ◽  
Petter Tammela ◽  
Jinxing Huo ◽  
Maria Strømme ◽  
...  

Rational design of high capacity, flexible Si paper anodes based on 3D conductiveCladophorananocellulose matrix.


Author(s):  
Shaohua Lu ◽  
Weidong Hu ◽  
Xiaojun Hu

Due to their low cost and improved safety compared to lithium-ion batteries, sodium-ion batteries have attracted worldwide attention in recent decades.


2019 ◽  
Vol 7 (29) ◽  
pp. 17357-17365 ◽  
Author(s):  
Bozhao Wu ◽  
Xiangzheng Jia ◽  
Yanlei Wang ◽  
Jinxi Hu ◽  
Enlai Gao ◽  
...  

A new graphyne with high stability, excellent flexibility and carrier mobility is theoretically predicted as a promising anode material for lithium-ion batteries with high capacity.


Sign in / Sign up

Export Citation Format

Share Document