Unlock instant, AI-driven research and patent intelligence for your innovation.
Lithium ion cell electrolyte and cell
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A lithium-ion battery and electrolyte technology, applied in the field of material chemistry, can solve problems such as the influence of the specific capacity of the positive and negative active materials of the battery, and achieve the effect of increasing the battery capacity
Active Publication Date: 2008-11-12
SHENZHEN BAK POWER BATTERY CO LTD
View PDF1 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Although this system has good safety performance and cycle life, it has a certain impact on the specific capacity of the positive and negative active materials of the battery.
Method used
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
View more
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0015] The weight ratio of the organic solvent in the electrolyte is: DMC is 5 parts, EMC is 65 parts, and EC is 30 parts
[0016] Mix 5gDMC, 65gEMC and 30gEC evenly in a closed environment, then add 0.091molLiPF 6 Mix well. Randomly select 30 uninjected 393048S batteries, inject a certain amount of the above-mentioned electrolyte into the 30 uninjected batteries in the glove box, then age, form and seal the injected batteries, and finally measure their capacity , the average discharge capacity is 547.8mah.
Embodiment 2
[0018] The weight ratio of the organic solvent in the electrolyte is: DMC is 15 parts, EMC is 60 parts, and EC is 25 parts
[0019] Mix 15gDMC, 60gEMC and 25gEC uniformly in a closed environment, then add 0.092molLiPF6 and mix thoroughly. Randomly select 30 uninjected 393048S batteries, inject a certain amount of the above-mentioned electrolyte into the 30 uninjected batteries in the glove box, then age, form and seal the injected batteries, and finally measure their capacity , the average discharge capacity is 548.6mah.
Embodiment 3
[0021] The weight ratio of the organic solvent in the electrolyte is: DMC is 10 parts, EMC is 55 parts, and EC is 35 parts
[0022] Mix 10gDMC, 55gEMC and 35gEC uniformly in a closed environment, then add 0.089molLiPF6 and mix well. Randomly select 30 uninjected 393048S batteries, inject a certain amount of the above-mentioned electrolyte into the 30 uninjected batteries in the glove box, then age, form and seal the injected batteries, and finally measure their capacity , the average discharge capacity is 549.1mah.
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
PUM
Property
Measurement
Unit
density
aaaaa
aaaaa
melting point
aaaaa
aaaaa
boiling point
aaaaa
aaaaa
Login to View More
Abstract
The invention relates to an electrolyte of lithium battery, which comprises electrolyte salt and organic solvent. Wherein, said organic solvent comprises dimethyl carbonate, diethyl carbonate, and ethylene carbonate, while their contents are 5-15, 55-65, and 25-35 deals. The invention also provides a relative lithium battery. And it has the advantages that based on the characters of different organic solvents; it combines the solvents, to find the best formula, to improve the capacity of battery.
Description
【Technical field】 [0001] The invention relates to the field of material chemistry and high-energy battery technology, in particular to a lithium-ion battery electrolyte and a battery. 【Background technique】 [0002] Lithium-ion battery electrolyte is an important part of the battery. It is responsible for the transmission of charge between the positive and negative electrodes in the battery. It is crucial to the specific capacity, operating temperature range, cycle efficiency and safety performance of the battery. Lithium-ion battery electrolyte is generally composed of high-purity organic solvent, electrolyte lithium salt and necessary additives. The organic solvent is the main part of the electrolyte, which is closely related to the performance of the electrolyte. It is generally used in combination with a high dielectric constant solvent and a low viscosity solvent; common electrolyte lithium salts include lithium perchlorate, lithium hexafluorophosphate, lithium tetraflu...
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
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More