Lg Energy Solution, Ltd.

Electronics and Telecommunications Research Institute

Lg Chem, Ltd

Shanjin Optoelectronics (Suzhou) Co., Ltd.

Silicon Works Co., Ltd.

Lx Semicon Co., Ltd.

University of California

Snu Rdb Foundation

Korea Aerospace Research Institute

Kt&g Corporation

Shanjin Optoelectronics (Nanjing) Co., Ltd.

Dong Hun Lee

Wang Mo Jung

Sung Bin Park

Jung Min Han

Jin Tae Hwang

Byung Jang Jeong

Sang Wook Lee

Ho Suk Shin

Hye Lim Jeon

Young Tae Kim

Ji Hye Kim

Seong Hoon Kang

So Ra Baek

Kyu Min Kang

Taiming Piao

Jae Cheol Park

Sung-Kyun Chang

Min Suk Kang

Gi Beom Han

Hyun Duk Kang

Hyun Hee Son

Hyun Soo Kim

Sang Min Park

Byung Chun Park

Young Bok Kim

Ji Hoon Ryu

Ki Soo Kim

Won Hee Kim

Chi Ho Jo

Seung Keun Park

Sin Young Park

Sang Ho Park

Jung Sun Um

Hoi Yoon Jung

Tae Gu Yoo

Hyuck Hur

Ji Young Park

Jae Ick Choi

Sung Hyun Hwang

Jang Uk Shin

In Sung Uhm

Yong Soon Baek

Sung Jin Yoo

Ying Shirley Meng

Tae Gon Kim

Hyung Man Cho

Dong Hwi Kim

Hyun Jin Oh

Joo Hong Jin

Jin Hyung Lim

Seul Ki Han

Hyeong Il Kim

Jong Sool Jeong

O Kyun Kwon

Mi Ran Park

Su Na Choi

Joo Yul Baek

Eun Sol Lho

Dae Jin Lee

Seul Ki Chae

Yeon Kyung Kim

Young Uk Park

Eun Deok Sim

Ho Seon Shin

Young Tak Han

Sang In Cho

Min Kwak

Byung Seok Choi

Moon Ho Park

Jin Ho Chung

Won Seok Chang

Hak Yoon Kim

Won Youn Kim

Jinhyung Lim

Chang Gi Min

Minghao Zhang

Jae Wook Kwon

June Hyunkyung Lee

Abhik Banerjee

Hyo-Min Gwak

Hyo Choong Bang

Moon-Yong Lee

Han-Jae Shin

Jeong-eun Shin

Serah Lee

Ji-Yong Jung

Jang Hee Oh

Young Sin Kim

Heung Jae Lee

Sung Eel Cho

Seok Jae Kim

The present invention relates to a positive electrode active material for a secondary battery which includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes the nickel (Ni) in an amount of 65 mol % or more and the manganese (Mn) in an amount of 5 mol % or more based on a total amount of transition metals, and wherein the electrode positive active material is composed of a single particle, having a crystallite size of 180 nm or more.

Positive electrode active material for secondary battery, method of preparing the same, and lithium secondary battery including the same

A positive electrode material and a method of producing thereof is provided. The positive electrode material having a bimodal particle diameter distribution and including large-diameter particles and small-diameter particles, wherein the small-diameter particle is a lithium composite transition metal oxide in the form of a single particle and containing a rock salt phase formed on a surface portion thereof.

Positive electrode material, producing method thereof, positive electrode and lithium secondary battery comprising the same

A positive electrode active material includes a nickel-based lithium transition metal oxide containing nickel in an amount of 60 mol % or more based on a total number of moles of metals excluding lithium, wherein cobalt is included in an amount of greater than 0 ppm to 6,000 ppm or less on a surface of the nickel-based lithium transition metal oxide. A method of preparing the positive electrode active material, a positive electrode for a lithium secondary battery and a lithium secondary battery which includes the positive electrode active material are also provided.

Positive electrode active material, method of preparing the positive electrode active material, and positive electrode and lithium secondary battery which include the positive electrode active material

A positive electrode material and a positive electrode and a lithium secondary battery including the same are provided. The positive electrode material having a bimodal particle size distribution which includes large-diameter particles and small-diameter particles having different average particle diameters (D), wherein the large-diameter particles are lithium composite transition metal oxide having a nickel content of 80 atm % or more in all transition metals thereof, and the small-diameter particles are a lithium composite transition metal oxide including nickel, cobalt, and aluminum, having a nickel content of 80 atm % to 85 atm % in all transition metals, and having an atomic ratio of the cobalt to the aluminum (Co/Al) of 1.5 to 5.

Positive electrode material for lithium secondary battery, and positive electrode and lithium secondary battery including same

A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), and a glassy coating layer formed on surfaces of particles of the lithium composite transition metal oxide, wherein, in the lithium composite transition metal oxide, an amount of the nickel (Ni) in a total amount of transition metals is 60 mol % or more, and an amount of the manganese (Mn) is greater than an amount of the cobalt (Co), and the glassy coating layer includes a glassy compound represented by Formula 1.LiMO  [Formula 1]

Positive electrode active material for secondary battery, method of preparing the same, and lithium secondary battery including the positive electrode active material

A positive electrode and a lithium secondary including the same is disclosed herein. In some embodiments, the positive electrode includes a positive electrode current collector, a first positive electrode active material layer and a second positive electrode active material layer sequentially stacked on the positive electrode current collector, wherein the first positive electrode active material layer and the second positive electrode active material layer include a bimodal positive active material, the first positive electrode active material layer includes small-diameter particles in the form of single particles, and the second positive electrode active material layer includes small-diameter particles in the form of secondary particles. The positive electrode has improved capacity, efficiency, lifespan, output properties, and thermal stability.

Positive electrode and lithium secondary battery including the same

The present invention relates to an electrode of a double-layer structure including a different type of particulate active material having a different average particle diameter, and a secondary battery including the same, and according to the present invention, the mechanical strength and stability of the electrode increases, and the secondary battery to which they are applied exhibits excellent discharge capacity.

Secondary battery electrode including mixture layer of double layer structure containing active materials of different particle diameters, and method for manufacturing the same

A positive electrode material for a lithium secondary battery includes a first positive electrode active material and a second positive electrode active material, both of which are lithium composite transition metal oxides containing transition metals. The first positive electrode active material has a larger average particle size (D) than the second positive electrode active material, wherein a ratio (Li/Me)of the mole number of lithium with respect to the total mole number of transition metals of the first positive electrode active material is more than 1 to 1.5 or less, and a ratio (Li/Me)of the mole number of lithium (Li) with respect to the total mole number of transition metals of the second positive electrode active material is 0.9 to 1. The second positive electrode active material has a crystallite size of 180 nm or more.

Positive electrode material for lithium secondary battery, and positive electrode for lithium secondary battery and lithium secondary battery including the same

The present disclosure provides a method for manufacturing a positive electrode for a secondary battery, the method including forming a positive electrode mixture layer including a positive electrode active material on a positive electrode current collector, and forming a metal oxide coating layer on the positive electrode mixture layer by atomic layer deposition, wherein the positive electrode active material includes lithium composite transition metal oxide particles and a boron-containing coating layer formed on the lithium composite transition metal oxide particles, and the lithium composite transition metal oxide particles include nickel (Ni), cobalt (Co), and manganese (Mn), wherein the nickel (Ni) is 60 mol % or greater of all metals excluding lithium.

Positive electrode for secondary battery, method for manufacturing same, and lithium secondary battery including same

A method for producing a high-nickel positive electrode active material, a positive electrode active material produced thereby, and a positive electrode and a lithium secondary battery including the same is provided. The method includes preparing a lithium composite transition metal oxide having a nickel content of 80 atm % or greater among transition metals, washing the lithium composite transition metal oxide, and mixing the washed lithium composite transition metal oxide with an aluminum raw material and heat treating the mixture at a temperature of 650° C. to 690° C. to obtain a positive electrode active material having a surface portion doped with aluminum.

High-nickel positive electrode active material, producing method thereof, positive electrode and lithium secondary battery comprising the same

A method of preparing a positive electrode active material for a secondary battery includes preparing a lithium composite transition metal oxide which includes nickel, cobalt, and manganese and contains 60 mol % or more of the nickel among all metals except lithium, adding a moisture absorbent and the lithium composite transition metal oxide into an atomic layer deposition (ALD) reactor, and adding a coating metal precursor into the atomic layer deposition (ALD) reactor and forming a metal oxide coating layer on surfaces of particles of the lithium composite transition metal oxide by atomic layer deposition (ALD).

Method of preparing positive electrode active material for secondary battery

The present disclosure discloses a display driving apparatus. The display driving apparatus of the present disclosure may be configured to drive a source signal in a state optimized for a panel load of a display panel.

Display driving apparatus

A positive electrode material including a first positive electrode active material represented by Formula 1 and a second positive electrode active material represented by Formula 2, a positive electrode including the same, and a lithium secondary battery including the positive electrode are provided. The positive electrode material has a bimodal particle size distribution including large diameter particles and small diameter particles, and the difference in average particle diameter (D) between the large diameter particles and the small diameter particles is 3 &#x3bc;m or greater.

Positive electrode material for lithium secondary battery, positive electrode including same, and lithium secondary battery

A positive electrode active material precursor is provided, which includes a transition metal hydroxide particle represented by Formula 1 and a cobalt oxide particle and a manganese oxide particle attached to the surface of the transition metal hydroxide particle. A preparation method thereof, a positive electrode active material prepared using the same, a positive electrode including the positive electrode active material, and a secondary battery including the positive electrode are also provided.

Positive electrode active material precursor, preparation method thereof, positive electrode active material prepared using same, positive electrode, and secondary battery

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Daejeon, South Korea

Dong Hun Lee