Supercharge Your Innovation With Domain-Expert AI Agents!

Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active material

A lithium secondary battery, active material technology, applied in secondary batteries, battery electrodes, chemical instruments and methods, etc., can solve the problems of unsatisfactory capacity characteristics, high resistance, short and long-term life, etc.

Active Publication Date: 2018-01-30
SAMSUNG SDI CO LTD
View PDF7 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, lithium secondary batteries containing such materials may have shorter long-term life, higher resistance, and unsatisfactory capacity characteristics

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
  • Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active material
  • Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active material
  • Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active material

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0179] Preparation Example 1: Composite metal hydroxide (Ni 0.6 co 0.2 mn 0.2 (OH) 2 ) preparation

[0180] Composite metal hydroxide powders (Ni 0.6 co 0.2 mn 0.2 (OH) 2 ).

[0181] Ammonia water and raw materials for the nickel-based active material were added to the reactor. The amount of said raw material for the nickel-based active material is controlled or selected to achieve the desired stoichiometric composition of the composite metal hydroxide. Sodium hydroxide was used to adjust the pH of the reactor mixture. Next, continuous agitation of the mixture in the reactor is performed until the desired size of the final product is reached, at which point the addition of the mixture of raw materials to the reactor is stopped. The resulting product is subjected to a drying process, thereby producing a composite metal hydroxide. The process for preparing the composite metal hydroxide will be described in more detail as follows.

[0182] Raw materials to be use...

preparation Embodiment 2

[0185] Preparation Example 2: Composite metal hydroxide (Ni 0.5 co 0.2 mn 0.3 (OH) 2 ) preparation

[0186] Obtain composite metal hydroxide (Ni in the same manner as in Preparation Example 1 0.5 co 0.2 mn 0.3 (OH) 2 ), except that the amounts of nickel sulfate, cobalt sulfate and manganese sulfate were changed to a molar ratio of 5:2:3 and the reaction was carried out for 25 hours.

preparation Embodiment 3

[0187] Preparation Example 3: Composite metal hydroxide (Ni 0.8 co 0.1 mn 0.1 (OH) 2 ) preparation

[0188] Obtain composite metal hydroxide (LiNi 0.8 co 0.1 mn 0.1 (OH) 2 ), except that the amounts of nickel sulfate, cobalt sulfate, and manganese sulfate were changed to a molar ratio of 8:1:1 and the reaction was carried out for 25 hours.

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

PropertyMeasurementUnit
Hole sizeaaaaaaaaaa
Hole sizeaaaaaaaaaa
Average lengthaaaaaaaaaa
Login to View More

Abstract

Provided are a nickel-based active material, a method of preparing the same, and a lithium secondary battery including a positive electrode including the nickel-based active material. The nickel-basedactive material includes at least one secondary particle including an aggregate of two or more primary particles, wherein at least a portion of the secondary particle has a radial array structure, and a hetero-element compound is positioned between the primary particles.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2016-0092243 filed on July 20, 2016 and Korean Patent Application No. 10-2016-162291 filed on November 30, 2016 at the Korean Intellectual Property Office and interests, the entire contents of each of which are incorporated herein by reference. technical field [0003] One or more aspects of embodiments of the present disclosure relate to a nickel-based active material for a lithium secondary battery, a preparation method thereof, and a lithium secondary battery including a positive electrode including the nickel-based active material. Background technique [0004] With the development of portable electronic devices and communication devices, there is a high demand for the development of lithium secondary batteries having high energy density. [0005] Lithium nickel manganese cobalt composite oxide, lithium cobalt oxide, etc. can be used as positi...

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): H01M4/36H01M4/505H01M4/525H01M10/0525
CPCY02E60/10H01M4/525H01M4/505H01M10/0525C01G53/50
Inventor 金钟珉金志允尹弼相张东圭赵广焕玄章鉐金珍和
Owner SAMSUNG SDI CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com