A kind of nano-titanium dioxide lithium battery and its manufacturing method

Abstract

The invention is applicable to the technical field of new energy, and provides a nano titanium dioxide lithium battery and a preparing method thereof. The nano titanium dioxide lithium battery comprises a positive sheet, a negative sheet, a diaphragm, a battery housing, a battery bottom cover, a battery top cap, a power failure explosion-proof layer, and an organic electrolyte. The nano titanium dioxide lithium battery is characterized in that the negative sheet is composed of several micro nano titanium dioxide tubes formed by gelatinizing nano titanium dioxide powder. The preparing method comprises the following steps: step 1, negative material mixing, step 2, negative paste coating, step 3, negative plate cutting, step 4, negative sheet preparing, step 5, positive / negative electrode winding, step 6, tab end welding, step 7, diaphragm liquid filling, step 8, charging / discharging testing, and step 9, testing and packaging. A negative electrode of the battery utilizes the micro nano titanium dioxide tubes instead of original graphite carbon tubes, 70% of electric power can be obtained within 2 minutes, an electric vehicle can be fully charged within only 5 minutes, the service life of the battery is as long as 20 years, and the battery can be charged for several thousand times.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a lithium battery using nano-titanium dioxide instead of graphite as a positive electrode and a manufacturing method thereof. Background technique [0002] At present, lithium-ion batteries are widely used in mobile phones, tablet computers, and electric vehicles, but they need to be charged for a few hours before they can be fully charged, which makes people who are in a hurry to use their mobile phones really anxious, which affects the driving time of the car, and the service life of the battery is not long. Although some manufacturers have added a small amount of titanium dioxide to the negative electrode material of the lithium-ion battery to improve the performance of the battery, they cannot be fully charged in about 10 minutes, let alone used for a long time. Contents of the invention [0003] In order to make up for the above deficiencies in the prior art...

AI Technical Summary

Problems solved by technology

[0002] At present, lithium-ion batteries are widely used in mobile phones, tablet computers, and electric vehicles, but they need to be charged for a few hours before they can be fully charged, which makes people who are in a hurry to use their mobile phones really anxious, affecting the driving time of the car, and the service life of the battery is not long

Although some manufacturers have added a small amount of titanium dioxide to the negative electrode material of lithium-ion batteries to improve the performance of the battery, they cannot be fully charged in about 10 minutes, let alone used for a long time.

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