公开(公告)号：US09159991B2

公开(公告)日：2015-10-13

申请号：US13846822

申请日：2013-03-18

申请人： Massachusetts Institute of Technology

发明人： Gerbrand Ceder ,  Anubhav Jain ,  Geoffroy Hautier ,  Jae Chul Kim ,  Byoungwoo Kang ,  Robert Daniel

IPC分类号： H01M4/58 ,  H01M4/131 ,  C01B25/45 ,  H01M4/36 ,  H01M10/052 ,  B02C17/18 ,  B02C19/18 ,  B02C23/06

CPC分类号： H01M4/131 ,  B02C17/1815 ,  B02C19/186 ,  B02C23/06 ,  C01B25/45 ,  H01M4/366 ,  H01M4/58 ,  H01M4/5805 ,  H01M4/5825 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54

摘要： This invention relates generally to electrode materials, electrochemical cells employing such materials, and methods of synthesizing such materials. The electrode materials have a crystal structure with a high ratio of Li to metal M, which is found to improve capacity by enabling the transfer of a greater amount of lithium per metal, and which is also found to improve stability by retaining a sufficient amount of lithium after charging. Furthermore, synthesis techniques are presented which result in improved charge and discharge capacities and reduced particle sizes of the electrode materials.

摘要翻译： 本发明一般涉及电极材料，采用这种材料的电化学电池，以及合成这些材料的方法。 电极材料具有Li与金属M的高比例的晶体结构，通过使每个金属能够转移更多量的锂，发现能够提高容量，并且还发现通过保持足够量的 充电后锂。 此外，提出了合成技术，其导致电极材料的充电和放电容量的提高以及粒径的降低。

公开(公告)号：US20130273425A1

公开(公告)日：2013-10-17

申请号：US13846822

申请日：2013-03-18

申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY

发明人： Gerbrand Ceder ,  Anubhav Jain ,  Geoffroy Hautier ,  Jae Chul Kim ,  Byoungwoo Kang ,  Robert Daniel

IPC分类号： H01M4/131 ,  B02C17/18 ,  B02C19/18 ,  B02C23/06

CPC分类号： H01M4/131 ,  B02C17/1815 ,  B02C19/186 ,  B02C23/06 ,  C01B25/45 ,  H01M4/366 ,  H01M4/58 ,  H01M4/5805 ,  H01M4/5825 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54

摘要： This invention relates generally to electrode materials, electrochemical cells employing such materials, and methods of synthesizing such materials. The electrode materials have a crystal structure with a high ratio of Li to metal M, which is found to improve capacity by enabling the transfer of a greater amount of lithium per metal, and which is also found to improve stability by retaining a sufficient amount of lithium after charging. Furthermore, synthesis techniques are presented which result in improved charge and discharge capacities and reduced particle sizes of the electrode materials.

摘要翻译： 本发明一般涉及电极材料，采用这种材料的电化学电池，以及合成这些材料的方法。 电极材料具有Li与金属M的高比例的晶体结构，通过使每个金属能够转移更多量的锂，发现能够提高容量，并且还发现通过保持足够量的 充电后锂。 此外，提出了合成技术，其导致电极材料的充电和放电容量的提高以及粒径的降低。

公开(公告)号：US20140246619A1

公开(公告)日：2014-09-04

申请号：US14152849

申请日：2014-01-10

申请人： Massachusetts Institute of Technology

发明人： Geoffroy Hautier ,  Anubhav Jain ,  Timothy Keith Mueller ,  Gerbrand Ceder

IPC分类号： H01M4/58 ,  C01B25/45 ,  C01B25/455

CPC分类号： H01M4/582 ,  C01B25/37 ,  C01B25/45 ,  C01B25/455 ,  H01M4/5825 ,  H01M10/052

摘要： In general, the invention relates to electrode materials, e.g., novel cathode materials with high density, low cost, and high safety. A voltage design strategy based on the mixing of different transition metals in crystal structures known to be able to accommodate lithium in insertion and delithiation is presented herein. By mixing a metal active on the +2/+3 couple (e.g., Fe) with an element active on the +3/+5 or +3/+6 couples (e.g., V or Mo), high capacity multi-electron cathodes are designed in an adequate voltage window.

摘要翻译： 通常，本发明涉及电极材料，例如具有高密度，低成本和高安全性的新型阴极材料。 本文介绍了一种基于在已知能够容纳锂的晶体结构中的不同过渡金属的混合在插入和剥离中的电压设计策略。 通过将+ 2 / + 3对（例如Fe）上的金属活性物质与+ 3 / + 5或+ 3 / + 6对（例如V或Mo）上活性的元素混合，将高容量多电子阴极 设计在足够的电压窗口。