公开(公告)号：US20240203624A1

公开(公告)日：2024-06-20

申请号：US18509451

申请日：2023-11-15

Applicant: ROGERS CORPORATION

Inventor： Yajie Chen ,  Lance Young

IPC: H01F1/34 ,  C01G51/00 ,  C01G53/00 ,  C08K3/22 ,  H01Q1/36

CPC classification number: H01F1/348 ,  C01G51/66 ,  C01G53/66 ,  C08K3/22 ,  H01Q1/364 ,  C01P2002/52 ,  C01P2006/40 ,  C01P2006/42 ,  C08K2003/2289 ,  C08K2003/2293 ,  C08K2201/01

Abstract: A NiHf- or NiTi-doped Co2Y-type ferrite, having a formula of


Ban-xSrxCo2-yCuyNizHfzFe(m-2z)O22

or


Ban-xSrxCo2-yCuyNizTizFe(m-2z)O22

wherein 2≤n≤2.4. 0≤x≤1, 0.1≤y≤1, 0

公开(公告)号：US20240182324A1

公开(公告)日：2024-06-06

申请号：US18521774

申请日：2023-11-28

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kang Taek LEE ,  Se Eun OH ,  Dong Yeon KIM

IPC: C01G51/00 ,  H01M8/14

CPC classification number: C01G51/66 ,  H01M8/14 ,  C01P2002/34 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/82 ,  C01P2006/40

Abstract: A cathode material comprises bimetal-doped barium cobaltite-based perovskite and a bi-directional protonic ceramic fuel cell comprising the same. In a cathode material according to an embodiment, barium cobaltite is doped with scandium (Sc) and tantalum (Ta), and the cathode material is represented by the following Formula 1:


BaScxTa0.2−xCo0.8O3−δ  [Formula 1]



where X is 0.001

公开(公告)号：US11984591B1

公开(公告)日：2024-05-14

申请号：US18400125

申请日：2023-12-29

Applicant: Beijing Easpring Material Technology Co., Ltd.

Inventor： Jun Wang ,  Feijiang Chen ,  Yafei Liu ,  Yanbin Chen

IPC: H01M4/505 ,  C01G49/00 ,  C01G51/00 ,  C01G53/00 ,  C01G55/00 ,  H01M4/525 ,  H01M10/054 ,  H01M4/02

CPC classification number: H01M4/505 ,  C01G49/0072 ,  C01G51/66 ,  C01G51/70 ,  C01G53/50 ,  C01G53/66 ,  C01G53/70 ,  C01G55/002 ,  H01M4/525 ,  H01M10/054 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2004/03 ,  C01P2006/10 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/028

Abstract: A sodium-containing oxide positive electrode material and a preparation method therefor and use thereof are disclosed. Also disclosed are a positive electrode plate and uses thereof.

公开(公告)号：US11670770B2

公开(公告)日：2023-06-06

申请号：US17036740

申请日：2020-09-29

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masahiro Takahashi ,  Mayumi Mikami ,  Yohei Momma ,  Teruaki Ochiai ,  Jyo Saitou

IPC: H01M4/525 ,  C01G51/00 ,  C01G53/00 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/525 ,  C01G51/66 ,  C01G53/66 ,  H01M10/0525 ,  C01P2002/32 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/85 ,  C01P2002/88 ,  C01P2004/04 ,  C01P2006/40 ,  C01P2006/42 ,  H01M2004/028

Abstract: A positive electrode active material has a small difference in a crystal structure between the charged state and the discharged state. For example, the crystal structure and volume of the positive electrode active material, which has a layered rock-salt crystal structure in the discharged state and a pseudo-spinel crystal structure in the charged state at a high voltage of approximately 4.6 V, are less likely to be changed by charging and discharging as compared with those of a known positive electrode active material. In order to form the positive electrode active material having the pseudo-spinel crystal structure in the charged state, it is preferable that a halogen source such as a fluorine and a magnesium source be mixed with particles of a composite oxide containing lithium, a transition metal, and oxygen, which is synthesized in advance, and then the mixture be heated at an appropriate temperature for an appropriate time.

公开(公告)号：US10056621B2

公开(公告)日：2018-08-21

申请号：US14582271

申请日：2014-12-24

Applicant: Ceres Intellectual Property Company Limited

Inventor： Wen Xu ,  Felix Shin ,  Matthew Rosseinsky ,  John Claridge

IPC: H01M4/00 ,  H01M4/90 ,  C01G51/00 ,  H01M4/88 ,  H01M8/1246 ,  H01M8/2425 ,  H01M8/124

CPC classification number: H01M4/9033 ,  C01G51/66 ,  C01G51/68 ,  C01G51/70 ,  C01P2002/34 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2006/40 ,  H01M4/8885 ,  H01M8/1246 ,  H01M8/2425 ,  H01M2008/1293

Abstract: Perovskite structures are provided for use in fuel cells. Specifically, perovskite structures are provided for use as electrodes in solid oxide fuel cells (SOFCs) and methods of making the same. The perovskite structure may include a first element X, strontium, iron, cobalt, oxygen and tungsten; wherein the first element X is barium, a lanthanide, or a mixture thereof, and wherein the structure comprises a region of single perovskite and a region of double perovskite.

公开(公告)号：US20160240842A1

公开(公告)日：2016-08-18

申请号：US14831871

申请日：2015-08-20

Applicant: Ningde Amperex Technology Limited

Inventor： Xiangpeng Fang ,  Chengren Wu ,  Na Liu ,  Xuguang Gao

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/131 ,  H01M4/525 ,  H01M4/485 ,  H01M4/505

CPC classification number: H01M4/366 ,  C01G51/42 ,  C01G51/66 ,  C01G53/42 ,  C01G53/50 ,  C01G53/66 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525

Abstract: The present invention provides a positive active material for use in a secondary lithium battery, a method for preparing the positive active material and a secondary lithium battery containing the positive active material. The positive active material includes a core of lithium transition metal oxide represented by Formula LixMyN1-yO2-αAβ and a coating layer of lithium transition metal silicate represented by Formula x′Li2O.y′N′Oa.SiO2-λBζwhich in-situ formed on the core, wherein 0.8≦x≦1.3, 0.6≦y≦1.0, 0.01≦x′≦2.1, 0.2≦y′≦1.5, 0.1≦a≦3.0, 0≦α≦0.2, 0≦β≦0.4, 0≦λ≦0.5, 0≦ζ≦0.5. The positive active material according to the present invention has high capacity, desirable cycling performance and safety performance, as well as desirable thermal stability.

Abstract translation: 本发明提供了用于二次锂电池的正极活性物质，制备正极活性物质的方法和含有正极活性物质的二次锂电池。 正极活性物质包括由式LixMyN1-yO2-αAβ表示的锂过渡金属氧化物的核心和由式x'Li2O.y'N'O'SiO_2-λBζ表示的锂过渡金属硅酸盐的涂层，其原位形成在 芯，其中0.8≤x≤1.3,0.6≤y≤1.0,0.01≤x≤1.1,0.2≤y≤1.5,0.1≤a≤3.0,0≤a≤0.2,0≤β≤0.4,0≤ λ≤0.5,0≤ζ≤0.5。 根据本发明的正极活性材料具有高容量，期望的循环性能和安全性能以及期望的热稳定性。

公开(公告)号：US20150148218A1

公开(公告)日：2015-05-28

申请号：US14090120

申请日：2013-11-26

Applicant: UT-Battelle, LLC

Inventor： Ho Nyung Lee ,  Hyoungjeen Jeen ,  Woo Seok Choi ,  Michael Biegalski ,  Chad M. Folkman ,  I-Cheng Tung ,  Dillon D. Fong ,  John W. Freeland ,  Dongwon Shin ,  Hiromichi Ohta ,  Matthew F. Chisholm

IPC: B01J23/75 ,  B01J20/04 ,  C01G51/00

CPC classification number: B01J20/04 ,  B01J23/002 ,  B01J23/78 ,  B01J23/847 ,  B01J35/0033 ,  B01J37/349 ,  C01G51/66 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2006/42

Abstract: Rapid, reversible redox activity may be accomplished at significantly reduced temperatures, as low as about 200° C., from epitaxially stabilized, oxygen vacancy ordered SrCoO2.5 and thermodynamically unfavorable perovskite SrCoO3-δ. The fast, low temperature redox activity in SrCoO3-δ may be attributed to a small Gibbs free energy difference between the two topotactic phases. Epitaxially stabilized thin films of strontium cobaltite provide a catalyst adapted to rapidly transition between oxidation states at substantially low temperatures. Methods of transitioning a strontium cobaltite catalyst from a first oxidation state to a second oxidation state are described.

Abstract translation: 快速，可逆的氧化还原活性可以在外延稳定的氧空位有序SrCoO2.5和热力学不利的钙钛矿SrCoO 3-δ的显着降低的温度，低至约200℃下完成。 SrCoO3-δ中的快速，低温氧化还原活性可归因于两个拓扑相之间的吉布斯自由能差异。 钴酸锶外延稳定的薄膜提供适合在基本上低温下快速转变氧化态的催化剂。 描述了将钴酸锶催化剂从第一氧化态转变为第二氧化态的方法。

公开(公告)号：US20130022869A1

公开(公告)日：2013-01-24

申请号：US13476847

申请日：2012-05-21

Applicant: Seung-Beob Yi

Inventor： Seung-Beob Yi

IPC: H01M4/485 ,  H01M4/525 ,  H01M4/505 ,  H01M4/54

CPC classification number: H01M4/485 ,  C01G51/42 ,  C01G51/66 ,  C01P2002/52 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

Abstract: A positive electrode active material for a lithium secondary battery includes a lithium cobalt complex oxide containing an alkali earth metal and a transition metal in a predetermined mixture ratio. A method of preparing the positive electrode active material includes mixing a lithium salt, a transition metal precursor, and an alkali earth metal salt to form a mixture, and performing at least one thermal treatment on the mixture. A positive electrode for a lithium secondary battery includes the positive electrode active material, and a lithium secondary battery includes the positive electrode.

Abstract translation: 锂二次电池用正极活性物质包含含有碱土类金属和过渡金属的锂钴复合氧化物，其中，预定的混合比例。 制备正极活性物质的方法包括混合锂盐，过渡金属前体和碱土金属盐以形成混合物，并对混合物进行至少一种热处理。 锂二次电池用正极包括正极活性物质，锂二次电池包括正极。

公开(公告)号：US20120312344A1

公开(公告)日：2012-12-13

申请号：US13578687

申请日：2011-02-22

Applicant: Fabian Delorme

Inventor： Fabian Delorme

IPC: C01F11/02 ,  H01L35/28 ,  H01L35/22 ,  C01G51/04

CPC classification number: C01G53/40 ,  C01G51/04 ,  C01G51/40 ,  C01G51/66 ,  C01P2002/22 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2006/40 ,  H01L35/22 ,  Y02P20/129

Abstract: The present invention relates to the use of Layered Double Hydroxides (LDH) for synthesizing cobaltites, in particular Ca3Co4O9. The invention also relates to a thermoelectric material comprising Ca3Co4O9 as obtained from a LDH precursor.

Abstract translation: 本发明涉及层状双氢氧化物（LDH）用于合成钴酸盐，特别是Ca 3 Co 4 O 9的用途。 本发明还涉及由LDH前体获得的包含Ca 3 Co 4 O 9的热电材料。

公开(公告)号：US20240136518A1

公开(公告)日：2024-04-25

申请号：US18400630

申请日：2023-12-29

Applicant: Ningde Amperex Technology Limited

Inventor： Kai WANG

IPC: H01M4/525 ,  C01G51/00 ,  H01M4/36 ,  H01M4/58 ,  H01M10/0567 ,  H01M10/42

CPC classification number: H01M4/525 ,  C01G51/66 ,  H01M4/366 ,  H01M4/582 ,  H01M10/0567 ,  H01M10/4235 ,  H01M2004/028

Abstract: A lithium transition metal composite oxide, comprising a twin crystal structure. The twin crystal structure includes a first crystalline region and a second crystalline region. A grain boundary exists between the first crystalline region and the second crystalline region. The first crystalline region includes a first region located within 20 nm from the grain boundary. The second crystalline region includes a second region located within 20 nm from the grain boundary. An angle between a transition metal layer in the first region and a transition metal layer in the second region is 65° to 80°. By adjusting the angle between the transition metal layer in the first region and the transition metal layer in the second region to fall within 65° to 80°, it can improve stability of the twin crystal structure, and in turn, improve the cycle performance of the electrochemical device at a high voltage.