Aqueous electrolyte and super-capacitor

A water-based electrolyte and supercapacitor technology, which is applied in the direction of hybrid capacitor electrolyte, etc., can solve the problems of small operating temperature range of supercapacitor, the inability of the electrolyte to maintain the electrochemical properties, and the decrease of the conductivity of the electrolyte, and achieve good electrochemical performance, Not easy to freeze, the effect of large operating temperature range
CN105280397AActive Publication Date: 2016-01-27CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
6 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2016-01-27

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides an aqueous electrolyte and a super-capacitor. The aqueous electrolyte comprises glucose, water and an inorganic salt. Compared with the prior art, the glucose is added to the aqueous electrolyte taking the inorganic salt as an electrolyte, a solidifying point of the acquired glucose-water-salt electrolyte is relatively lower than that of a water-salt electrolyte, and the glucose-water-salt electrolyte is difficult to freeze and has good electrochemical performance at a relatively low temperature, so that using restrictions of the aqueous electrolyte at low temperature conditions are broken through. Furthermore, sodium perchlorate is selected preferably to act as the electrolyte, so that the acquired aqueous electrolyte is enabled to have higher electric conductivity, a wider working temperature range and a wider potential window, and the aqueous electrolyte is enabled to still have good performance under the low temperature conditions. In addition, the glucose is taken as an anti-freeze additive, so that the solidifying point of the aqueous electrolyte is reduced. The glucose is an environment-friendly substance, and is wide in source, cheap and easy to get.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of electric double layer capacitors, in particular to an aqueous electrolyte and a supercapacitor. Background technique

[0002] With the development of society, people's demand for sustainable and clean energy is becoming more and more urgent. Electrochemical supercapacitors, also called supercapacitors, are energy storage components based on the electrochemical reaction process at the electrode / solution interface. The capacity of electrochemical supercapacitors is 20 to 200 times that of traditional capacitors, which can reach farad level or even thousand farad level. It has both the advantages of high power density of conventional capacitors and high energy density of rechargeable batteries, and is considered to be an efficient and practical new energy source.

[0003] Supercapacitors can be divided into two categories according to the energy storage mechanism: capacitors using activated carbon with hig...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More