High-energy high-power density lithium ion supercapacitor and assembling method thereof

A supercapacitor, high power density technology, applied in the direction of capacitors, electrolytic capacitors, liquid electrolytic capacitors, etc., can solve the problems of power density limitation, difficulty in reaching the energy storage level of secondary batteries, etc., achieve high power density, increase energy density, The effect of high power density
CN103680972AActive Publication Date: 2014-03-26INST OF METAL RESEARCH - CHINESE ACAD OF SCI
5 Cites 23 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Publication Date
2014-03-26

Smart Images

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

Abstract

The invention discloses a high-energy high-power density lithium ion supercapacitor and an assembling method thereof and belongs to the technical field of electrochemical energy storage devices. In order to greatly improve the energy density of the lithium ion supercapacitor, non-graphitic carbon materials with a certain oxygen-containing functional groups are used as positive and negative electrodes, after the electrodes are embedded in advance, a lithium salt organic electrolyte solution is used as an electrolyte solution, and the lithium ion supercapacitor is assembled. According to the design and assembling mode, the positive and negative electrodes can be always positioned in the most suitable potential interval in the operating process of a device, and the characteristics of high specific capacity and high power of the non-graphitic carbon materials are exerted to the greatest degree. Moreover, an available voltage window of the electrolyte can be fully utilized, so that the operating voltage of the device reaches an upper limit of decomposition voltage of the electrolyte, and the energy density and power density of the lithium ion supercapacitor are greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention relates to the technical field of electrochemical energy storage devices, in particular to a lithium ion supercapacitor with high energy and high power density and an assembly method thereof. Background technique

[0002] As an energy storage device, supercapacitors have the characteristics of high power, short charging time, long service life, wide operating temperature range, and high safety performance. They can be used as high-power pulse power sources in wind and solar power generation, hybrid electric vehicles, and heavy machinery. , Standby power, portable electronic products and other fields have very broad development prospects. According to different energy storage mechanisms, supercapacitors are divided into electric double layer capacitors and pseudocapacitor capacitors. The former mainly relies on the physical electrostatic adsorption of electrolyte ions on the electrode surface to store energy, and the latter mainly relies on the...

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