Non-aqueous electrolyte for ternary lithium ion batteries and nickelic lithium ion battery comprising electrolyte
A lithium-ion battery and non-aqueous electrolyte technology, applied in the field of lithium-ion batteries, can solve the problem of not being able to well suppress the dissolution of metal ions in ternary positive electrode materials, the destruction of the structure, oxidation catalysis, and the poor high-temperature cycle performance of high-nickel ternary materials. Good high-temperature storage gas production, ternary material stability decline and other issues, to achieve the effect of improving internal dynamic characteristics, improving cycle performance, and inhibiting decomposition reactions
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0039] Example 1
[0040] Electrolyte preparation steps: In a glove box filled with argon, mix ethylene carbonate, diethyl carbonate, and ethyl methyl carbonate at a mass ratio of EC:DEC:EMC=3:2:5, and then add to the mixed solution Slowly add 12.5% by weight of lithium hexafluorophosphate, and finally add 1.0% by weight of compound 1 based on the total weight of the electrolyte, and stir uniformly to obtain the lithium ion battery electrolyte of Example 1.
[0041] Inject the prepared lithium-ion battery electrolyte into fully dried artificial graphite material / LiNi 0.6 Co 0.6 Mn 0.2 O 2 In the battery, after the battery is placed at 45°C, formed into a high-temperature jig, and sealed again, it is conventionally divided.
[0042] 1) Battery cycle performance test at room temperature: At 25℃, charge the divided battery to 4.2V at 1C constant current and constant voltage, with a cut-off current of 0.05C, and then discharge to 3.0V at 1C constant current, and then cycle and charge ...
Example Embodiment
[0048] Example 2-14 and Comparative Example 1-6
[0049] As shown in Table 1, in Examples 2-14 and Comparative Examples 1-6, except that the composition ratio of each component of the electrolyte is added as shown in Table 1, the others are the same as in Example 1.
[0050] Table 1 The composition ratio of each component of the electrolyte of Examples 1-14 and Comparative Examples 1-6
[0051]
[0052]
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap