Graphene lithium ion battery electrolyte
A lithium-ion battery and electrolyte technology, applied in the field of lithium-ion batteries, can solve problems such as poor cycle performance and rapid loss of lithium-ion battery capacity, and achieve the effects of improved voltage resistance, excellent cycle performance, and high capacity recovery rate
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0023] The graphene lithium-ion battery electrolyte is prepared by the following steps: dissolve lithium hexafluorophosphate in vinylene carbonate under the effect of a magnetic field, stir for 5 hours, add vitamin E, octamethylcyclotetrasiloxane and hexamethyldisilazane , ultrasonic vibration at room temperature for 5 hours, and finally adding graphene, the strength of the magnetic field increased to 3500GS, and ultrasonic vibration at -4°C for 3 hours to obtain graphene lithium-ion battery electrolyte; wherein, the concentration of electrolyte in the electrolyte is 1.7mol / L , the frequency of ultrasonic vibration is 45Hz, the strength of the magnetic field is 2100GS, based on the total weight of the electrolyte, the amount of additives added is: 5% hexamethyldisilazane, 0.5% octamethylcyclotetrasiloxane , 0.3% vitamin E and 4.5% graphene.
Embodiment 2
[0025] The graphene lithium-ion battery electrolyte is prepared by the following steps: dissolving lithium tetrafluoroborate in a mixture of γ-butyrolactone and dipropyl carbonate under the effect of a magnetic field, γ-butyrolactone and dipropyl carbonate The volume ratio is 2:1, stirring for 5.5h, adding vitamin E, octamethylcyclotetrasiloxane and hexamethyldisilazane, ultrasonic vibration at room temperature for 5.5h, and finally adding graphene, the strength of the magnetic field is increased to 3800GS, ultrasonic vibration at 0°C for 4 hours to obtain graphene lithium-ion battery electrolyte; wherein, the concentration of electrolyte in the electrolyte is 2.12mol / L, the frequency of ultrasonic vibration is 50Hz, and the strength of the magnetic field is 2600GS. Based on the weight, the additives are added in the following amounts: 5.5% of hexamethyldisilazane, 2.4% of octamethylcyclotetrasiloxane, 4.1% of vitamin E and 5% of graphene.
Embodiment 3
[0027] The graphene lithium-ion battery electrolyte is prepared by the following steps: LiAsF 6 Dissolve in diethyl carbonate under the effect of a magnetic field, stir for 6.5 hours, add vitamin E, octamethylcyclotetrasiloxane and hexamethyldisilazane, ultrasonically vibrate for 6 hours at room temperature, and finally add graphene, the strength of the magnetic field Increase to 4000GS, and ultrasonically vibrate at 5°C for 4.5h to obtain graphene lithium-ion battery electrolyte; wherein, the electrolyte concentration in the electrolyte is 2.35mol / L, the frequency of ultrasonic vibration is 55Hz, and the strength of the magnetic field is 3200GS, with Based on the total weight of the electrolyte, the additives are added in the following amounts: 6.5% hexamethyldisilazane, 3.5% octamethylcyclotetrasiloxane, 5.3% vitamin E and 8.5% graphene.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com