View source for 18354414. POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERIES, PREPARATION METHOD THEREOF AND RECHARGEABLE LITHIUM BATTERIES INCLUDING THE SAME simplified abstract (SAMSUNG SDI CO., LTD.)

=POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERIES, PREPARATION METHOD THEREOF AND RECHARGEABLE LITHIUM BATTERIES INCLUDING THE SAME=


==Organization Name==

[[:Category:SAMSUNG SDI CO., LTD.|SAMSUNG SDI CO., LTD.]]


[[Category:SAMSUNG SDI CO., LTD.]]

==Inventor(s)==

[[:Category:Youngjoo Chae of Yongin-si (KR)|Youngjoo Chae of Yongin-si (KR)]][[Category:Youngjoo Chae of Yongin-si (KR)]]

[[:Category:Minhan Kim of Yongin-si (KR)|Minhan Kim of Yongin-si (KR)]][[Category:Minhan Kim of Yongin-si (KR)]]

[[:Category:Jinhwa Kim of Yongin-si (KR)|Jinhwa Kim of Yongin-si (KR)]][[Category:Jinhwa Kim of Yongin-si (KR)]]

[[:Category:Jihyun Seog of Yongin-si (KR)|Jihyun Seog of Yongin-si (KR)]][[Category:Jihyun Seog of Yongin-si (KR)]]

==POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERIES, PREPARATION METHOD THEREOF AND RECHARGEABLE LITHIUM BATTERIES INCLUDING THE SAME - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18354414 titled 'POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERIES, PREPARATION METHOD THEREOF AND RECHARGEABLE LITHIUM BATTERIES INCLUDING THE SAME

==Simplified Explanation==

The positive active material for a rechargeable lithium battery includes a first positive active material with a lithium nickel-based composite oxide and a cobalt coating portion on a secondary particle, as well as a second positive active material with a lithium nickel-based composite oxide and a cobalt coating portion on a single particle.

* Lithium nickel-based composite oxide
* Cobalt coating portion
* Secondary particle aggregation
* Single particle structure
* Cobalt content ratio in the coating portion

== Potential Applications ==
The technology can be applied in the development of high-performance rechargeable lithium batteries for various electronic devices, electric vehicles, and energy storage systems.

== Problems Solved ==
1. Enhanced battery performance and stability
2. Improved energy density and cycle life of lithium batteries

== Benefits ==
1. Increased energy storage capacity
2. Longer battery lifespan
3. Enhanced overall battery performance

== Potential Commercial Applications ==
Optimized lithium battery technology for consumer electronics, electric vehicles, and renewable energy storage solutions.

== Possible Prior Art ==
Previous research on cobalt-coated lithium nickel-based composite oxides for lithium battery applications.

== Unanswered Questions ==

=== How does the cobalt coating affect the overall battery performance compared to other coating materials? ===
The abstract does not provide a direct comparison with other coating materials or detailed performance data.

=== Are there any limitations or drawbacks associated with the use of cobalt in the positive active material? ===
The abstract does not mention any potential limitations or drawbacks of using cobalt in the positive active material.


==Original Abstract Submitted==

Disclosed are a positive active material for a rechargeable lithium battery, a preparation method thereof, and a rechargeable lithium battery including the same. The positive active material for a rechargeable lithium battery includes a first positive active material including a lithium nickel-based composite oxide and including a secondary particle in which a plurality of primary particles are aggregated and a cobalt coating portion on a surface of the secondary particle, and a second positive active material including a lithium nickel-based composite oxide and including a single particle and a cobalt coating portion on a surface of the single particle, wherein a cobalt content (at %) based on the total amount of nickel and cobalt in the cobalt coating portion of the first positive active material is about 1.45 times to about 1.60 times a cobalt content (at %).



[[Category:H01M4/36]]
[[Category:H01M4/04]]
[[Category:H01M4/525]]
[[Category:H01M10/052]]