Method of tin-graphene airflow-coated high-nickel ternary lithium battery electrode material

A ternary lithium battery and electrode material technology, applied in battery electrodes, electrical components, secondary batteries, etc., can solve the problems of limited performance improvement and lower specific capacity, and achieve high production capacity, high activity, and continuous production process Effect

Inactive Publication Date: 2018-08-14
CHENDU NEW KELI CHEM SCI CO LTD
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But performance is limited
Especially for coating, because it is difficult to effectively make the coating material uniform and complete coating particles in the

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method of tin-graphene airflow-coated high-nickel ternary lithium battery electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1). Prepare 10L nickel nitrate containing 1.4molNi(NO 3 ) 2 , 0.2mol cobalt nitrate Co(NO 3 ) 2 , 0.3mol manganese nitrate Mn (NO 3 ) 2 , 2mol lithium nitrate LiNO 3 The mixed solution of nitrates was sprayed and dried to obtain the premix.

[0039] (2). Calcinate the premixed material obtained in step (1) at 750°C for 0.9h, and perform jet milling on a fluidized bed to obtain nanoparticles A. The gas used in the jet mill is compressed air;

[0040] (3). Mix 0.02kg metal tin and 1.5Kg graphene under the protection of nitrogen, heat the metal tin and graphene to 235°C for 5 minutes under nitrogen atmosphere, and obtain tin liquid B;

[0041] (4). Put 1Kg of nanoparticles A in step (2) and 0.04Kg of tin liquid B in step (3) into two storage tanks opposite to the high-speed airflow collider, and use nitrogen with a pressure of 0.3Mpa as the delivery gas. The nanoparticles A and tin liquid B are collided in the airflow collider in the form of gas fluid. The flow vel...

Embodiment 2

[0043] (1). Prepare 10L nickel nitrate containing 1.6molNi(NO 3 ) 2 , 0.2mol cobalt nitrate Co(NO 3 ) 2 , 0.3mol manganese nitrate Mn (NO 3 ) 2 , 2.2mol lithium nitrate LiNO 3 The mixed solution of nitrates was sprayed and dried to obtain the premix.

[0044] (2). Calcinate the premix obtained in step (1) at 760° C. for 0.9 h, and perform jet milling on a fluidized bed to obtain nanoparticles A. The gas used in the jet mill is compressed air;

[0045] (3). Mix 0.03kg metal tin and 1.5Kg graphene under the protection of nitrogen, heat the metal tin and graphene to 240°C for 6 minutes under nitrogen atmosphere, and obtain tin liquid B;

[0046] (4). Put 1Kg of nanoparticles A in step (2) and 0.04Kg of tin liquid B in step (3) into two storage tanks opposite to the high-speed airflow collider, and use nitrogen with a pressure of 0.4Mpa as the delivery gas. The nanoparticles A and tin liquid B are collided in the airflow collider in the form of gas fluid. The flow velocity ...

Embodiment 3

[0048] (1). Prepare 10L nickel nitrate containing 1.7molNi(NO 3 ) 2 , 0.2mol cobalt nitrate Co(NO 3 ) 2 , 0.4mol manganese nitrate Mn (NO 3 ) 2 , 2.4mol lithium nitrate LiNO 3 The mixed solution of nitrates was sprayed and dried to obtain the premix.

[0049] (2). The premixed material obtained in step (1) was roasted at 770°C for 0.9h, and jet milled in a fluidized bed to obtain nanoparticles A. The gas used in the jet mill was compressed air;

[0050] (3). Mix 0.02kg metal tin and 1.7Kg graphene under the protection of nitrogen, heat the metal tin and graphene to 300°C for 5 minutes under nitrogen atmosphere, and obtain tin liquid B;

[0051] (4). Put 1.5Kg of nanoparticles A in step (2) and 0.03Kg of tin liquid B in step (3) into two storage tanks opposite to the high-speed airflow collider, and use nitrogen with a pressure of 0.4Mpa as the delivery gas , the nanoparticle A and tin liquid B are collided in the airflow collider in the form of gas fluid. The flow veloc...

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

No PUM Login to view more

Abstract

The invention relates to the field of a high-nickel ternary lithium ion battery electrode material, in particular to a method of a tin-graphene airflow-coated high-nickel ternary lithium battery electrode material. The method comprises the steps of preparing a high-nickel nitrate of nickel, cobalt, manganese and lithium, and performing spray drying to obtain a pre-mixing material, wherein the moleratio of Ni, Co, Mn and Li is (0.7-1.2):(0.1-0.3):(0.1-0.5):(1-1.5); roasting the pre-mixing material for 0.8-1.5 hours under 750-860 DEG C, and obtaining nanoparticle A by airflow grinding; meltingtin and graphene to form a tin liquid B under protection of nitrogen, wherein the mass ratio of the metal tin and the graphene is (0.1-0.3):(15-25); and clashing the nanoparticle A and the tin liquidB in an airflow clashing machine by taking nitrogen with pressure being (0.2-0.4) MPa as a transmission gas, wherein the flowing speed of the nanoparticle A and the tin liquid B is 340m/s or above. Bythe method, high capacity density of the high-nickel ternary material can be ensured, and a few amount of coating agent is involved.

Description

technical field [0001] The invention relates to the field of high-nickel ternary lithium battery electrode materials, in particular to a method for coating high-nickel ternary lithium battery electrode materials with tin-graphene air flow. Background technique [0002] Compared with traditional storage batteries, lithium-ion batteries not only have higher energy, stronger discharge capacity, and longer cycle life, but also have an energy storage efficiency of more than 90%. The above characteristics determine the use of lithium-ion batteries in electric vehicles, storage power, etc. Great prospects for development. As the functions and performance of various electronic products continue to improve, the requirements for battery energy density are also more intense. In the past, in order to increase the capacity of the battery, almost all started from the design of the battery, but this method has reached its limit. If you want to increase the capacity of the battery, you mus...

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
no application Login to view more
IPC IPC(8): H01M4/36H01M4/525H01M4/38H01M4/583H01M4/62H01M10/0525
CPCH01M4/366H01M4/387H01M4/525H01M4/583H01M4/625H01M10/0525Y02E60/10
Inventor 陈庆曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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