| | |
| | |
Stat |
Members: 3643 Articles: 2'488'730 Articles rated: 2609
29 March 2024 |
|
| | | |
|
Article overview
| |
|
High-Capacity Rechargeable $Li/Cl_2$ Batteries with Graphite Positive Electrodes | Guanzhou Zhu
; Peng Liang
; Cheng-Liang Huang
; Cheng-Chia Huang
; Yuan-Yao Li
; Shu-Chi Wu
; Jiachen Li
; Feifei Wang
; Xin Tian
; Wei-Hsiang Huang
; Shi-Kai Jiang
; Wei-Hsuan Hung
; Hui Chen
; Meng-Chang Lin
; Bing-Joe Hwang
; Hongjie Dai
; | Date: |
4 Jul 2022 | Abstract: | Developing new types of high-capacity and high-energy density rechargeable
battery is important to future generations of consumer electronics, electric
vehicles, and mass energy storage applications. Recently we reported ~ 3.5 V
sodium/chlorine $(Na/Cl_2)$ and lithium/chlorine $(Li/Cl_2)$ batteries with up
to 1200 mAh $g^{-1}$ reversible capacity, using either a Na or Li metal as the
negative electrode, an amorphous carbon nanosphere (aCNS) as the positive
electrode, and aluminum chloride $(AlCl_3)$ dissolved in thionyl chloride
$(SOCl_2)$ with fluoride-based additives as the electrolyte. The high surface
area and large pore volume of aCNS in the positive electrode facilitated NaCl
or LiCl deposition and trapping of $Cl_2$ for reversible $NaCl/Cl_2$ or
$LiCl/Cl_2$ redox reactions and battery discharge/charge cycling. Here we
report an initially low surface area/porosity graphite (DGr) material as the
positive electrode in a $Li/Cl_2$ battery, attaining high battery performance
after activation in carbon dioxide $(CO_2)$ at 1000 °C (DGr_ac) with the
first discharge capacity ~ 1910 mAh $g^{-1}$ and a cycling capacity up to 1200
mAh $g^{-1}$. Ex situ Raman spectroscopy and X-ray diffraction (XRD) revealed
the evolution of graphite over battery cycling, including
intercalation/de-intercalation and exfoliation that generated sufficient pores
for hosting $LiCl/Cl_2$ redox. This work opens up widely available, low-cost
graphitic materials for high-capacity alkali metal/$Cl_2$ batteries. Lastly, we
employed mass spectrometry to probe the $Cl_2$ trapped in the graphitic
positive electrode, shedding light into the $Li/Cl_2$ battery operation. | Source: | arXiv, 2207.01133 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |