All‐Organic Rechargeable Battery with Reversibility Supported by “Water‐in‐Salt” Electrolyte

Rechargeable batteries with organic electrodes are preferred to those with transition‐metal‐containing electrodes for their environmental friendliness, and resource availability, but all such batteries reported to date are based on organic electrolytes, which raise concerns of safety and performance...

Full description

Saved in:
Bibliographic Details
Published in:Chemistry : a European journal 2017-02, Vol.23 (11), p.2560-2565
Main Authors: Dong, Xiaoli, Yu, Hongchuan, Ma, Yuanyuan, Bao, Junwei Lucas, Truhlar, Donald G., Wang, Yonggang, Xia, Yongyao
Format: Article
Language:English
Subjects:
all-organic
Aqueous solutions
Batteries
Cathodes
Chemistry
Dianhydrides
Electric batteries
Electrodes
Electrolytes
Lithium
Nonaqueous electrolytes
Oxidation
polyimide
polytriphenylamine
Rechargeable batteries
rechargeable battery
“water-in-salt” electrolyte
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Rechargeable batteries with organic electrodes are preferred to those with transition‐metal‐containing electrodes for their environmental friendliness, and resource availability, but all such batteries reported to date are based on organic electrolytes, which raise concerns of safety and performance. Here an aqueous‐electrolyte all‐organic rechargeable battery is reported, with a maximum operating voltage of 2.1 V, in which polytriphenylamine (PTPAn) and 1,4,5,8‐naphthalenetetracarboxylic dianhydride (NTCDA)‐derived polyimide (PNTCDA) serve as cathode and anode material, respectively. A key feature of the design is use of a “water‐in‐salt” electrolyte to bind “free” water; this impedes the side reaction of water oxidation, thereby enabling excellent reversibility in aqueous solution. The battery can deliver a maximum energy density of 52.8 Wh kg−1, which is close to most of the all‐organic batteries with organic electrolytes. The battery exhibits a supercapacitor‐like high power of 32 000 W kg−1 and a long cycle life (700 cycles with capacity retention of 85 %), due to the kinetics not being limited by ion diffusion at either electrode. New battery: An all‐organic rechargeable battery based on polytriphenylamine (PTPAn) and 1,4,5,8‐naphthalenetetracarboxylic dianhydride (NTCDA)‐derived polyimide (PNTCDA) as cathode and anode materials was designed and built by taking advantage of a “water‐in‐salt” electrolyte to impede water oxidation.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201700063