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High-magnification, high-capacity and high-platform-compatible lithium ion battery specially for electronic cigarette

A lithium-ion battery, high-rate technology, applied in battery electrodes, secondary batteries, smoker supplies, etc., can solve the problems of poor rate and cycle performance under high pressure, improve electrical conductivity and processing performance, and increase rate performance , Improve the effect of doping uniformity

Active Publication Date: 2021-07-13
江门市力源电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a lithium-ion battery with high rate, high capacity and high platform for electronic cigarettes, which is mainly composed of lithium cobalt oxide particles doped with Ce and Sm and coatings coated on the surface; the lithium cobalt oxide particles The molecular formula is Li a co 1-b-c Ce b SM c o 2 , wherein, 0.95≤a≤1.15, 0.001≤b≤0.005, 0.001≤c≤0.005, the coating is selected from ZnO and NiO, wherein the ZnO is 0.5-2.5wt% of the lithium cobaltate particles, NiO is 0.5-2.5 wt% of the lithium cobaltate particles, and the lithium-ion battery solves the problem of poor rate and cycle performance of existing materials under high pressure, and is an ideal material for electronic cigarettes

Method used

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  • High-magnification, high-capacity and high-platform-compatible lithium ion battery specially for electronic cigarette
  • High-magnification, high-capacity and high-platform-compatible lithium ion battery specially for electronic cigarette

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) The battery-grade cobalt nitrate, battery-grade lithium nitrate, cerium nitrate and samarium nitrate were prepared according to the preset LiCo 0.994 Ce 0.003 SM 0.003 o 2 Stoichiometric ratio is carried out batching, then carry out sand mill refinement in sand mill, raw material sand mill will add a certain amount of pure water, the scope of solid content is 30wt%, will add 0.25wt% (with sand mill The stearic amide compared with the mass sum of raw materials), after a certain sanding time, after the sanding, the particle size of the slurry reaches 0.4 μm, stop the sanding, release the sanding slurry and place it in a bucket with agitation (open Stir to make each part of the slurry in a uniform state), and wait for the next step to be processed.

[0025] (2) The slurry obtained in step (1) is sprayed and granulated to prepare a spherical small particle size lithium-ion battery precursor, the particle size is between 5 μm, and the water content is within 0.5wt%. ...

Embodiment 2

[0030] (1) The battery-grade cobalt nitrate, battery-grade lithium nitrate, cerium nitrate and samarium nitrate were prepared according to the preset Li 1.15 co 0.994 Ce 0.005 SM 0.001 o 2 Stoichiometric ratio is carried out batching, then carry out sand mill refinement in sand mill, raw material sand mill will add a certain amount of pure water, the scope of solid content is 40wt%, will add 0.5wt% (with sand mill Compared with the total mass of raw materials) of hexamethyldisilazane, after a certain sanding time, the particle size of the slurry after sanding reaches 0.5 μm, stop sanding, and release the sanding slurry to a bucket with stirring Place it inside (turn on stirring to keep all parts of the slurry in a uniform state), and wait for the next step.

[0031] (2) The slurry obtained in step (1) is sprayed and granulated to prepare a spherical small particle size lithium-ion battery precursor, the particle size is between 7 μm, and the water content is within 0.5wt%....

Embodiment 3

[0036] (1) The battery-grade cobalt nitrate, battery-grade lithium nitrate, cerium nitrate and samarium nitrate were prepared according to the preset Li 0.95 co 0.994 Ce 0.001 SM 0.005 o 2 Stoichiometric ratio is carried out batching, then carry out sand mill refinement in sand mill, raw material sand mill will add a certain amount of pure water, the scope of solid content is 20wt%, will add 0.02wt% (with sand mill The stearic amide compared with the mass sum of raw materials), after a certain sanding time, the particle size of the slurry after the sanding reaches 0.2 μm, stop the sanding, release the sanding slurry and place it in a bucket with stirring (open Stir to make each part of the slurry in a uniform state), and wait for the next step to be processed.

[0037] (2) The slurry obtained in step (1) is sprayed and granulated to prepare a spherical small particle size lithium-ion battery precursor, the particle size is between 2 μm, and the water content is within 0.5w...

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Abstract

The invention provides a high-magnification, high-capacity and high-platform-compatible lithium ion battery specially for an electronic cigarette. The lithium ion battery is mainly composed of Ce and Sm doped lithium cobalt oxide particles and a coating material coating the surfaces of the particles; and the molecular formula of the lithium cobalt oxide particles is LiCo<1-b-c>CeSm<c>O<2>, wherein a is greater than or equal to 0.95 and less than or equal to 1.15, b is greater than or equal to 0.001 and less than or equal to 0.005, c is greater than or equal to 0.001 and less than or equal to 0.005, the coating is selected from ZnO and NiO, the ZnO accounts for 0.5-2.5 wt% of the lithium cobalt oxide particles, the NiO accounts for 0.5-2.5 wt% of the lithium cobalt oxide particles, and the lithium ion battery solves the problem that the existing material is poor in rate capability and cycle performance under high voltage, and is an ideal material for electronic cigarettes.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a lithium-ion battery dedicated to electronic cigarettes with both high power, high capacity and high platform. Background technique [0002] E-cigarettes are mainly used to quit smoking and replace cigarettes. Electronic cigarettes currently on the market include a battery rod and an atomizer. The battery rod includes a battery with a positive pole and a negative pole at both ends, and a control board that integrates structures such as an airflow sensor and a control circuit. The atomizer includes heating wire and smoke liquid. When there is a smoking action, the control board controls the battery to supply power to the atomizer, and drives the heating wire to generate heat to generate smoke. [0003] However, the batteries currently used in electronic cigarettes (especially cigar electronic cigarette products) have the problems of low capacity and low magnificat...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/48H01M4/485H01M4/525H01M10/0525A24F47/00
CPCH01M4/366H01M4/485H01M4/525H01M4/48H01M10/0525Y02E60/10
Inventor 傅舒顺何青尹荔松
Owner 江门市力源电子有限公司
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