公开(公告)号：US20140087257A1

公开(公告)日：2014-03-27

申请号：US13880306

申请日：2011-03-29

Applicant: Sukumaran Gopukumar ,  Chandrasekaran Nithya ,  Ramasamy Thirunakaran ,  Arumugam Sivashanmugam ,  Sundeep Kumar Dhawan ,  Rakesh Behari Mathur ,  Priyanka Heda Maheshwari

Inventor： Sukumaran Gopukumar ,  Chandrasekaran Nithya ,  Ramasamy Thirunakaran ,  Arumugam Sivashanmugam ,  Sundeep Kumar Dhawan ,  Rakesh Behari Mathur ,  Priyanka Heda Maheshwari

IPC: H01M4/36 ,  C01D15/02

CPC classification number: H01M4/366 ,  C01D15/02 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525

Abstract: A new high performing lithium ion cell having new carbon based anode and new dual doped layered cathode materials. The anode is a self standing carbon fibrous material and the cathode is a dual doped Lithium cobalt oxide of general formula LiMxNyCo1-x-yO2 (0.01≦x, y≦0.2) wherein M is a divalent alkaline earth metal cation and N is a divalent transition metal cation. Lithium ion cells of 2016 coin cells were assembled using the above materials deliver specific capacity of 60-85 mAhg−1 at 1 C rate and exhibit excellent cycling stability of 90-95% even after 200 cycles when cycled between 2.9-4.1V.

Abstract translation: 一种新的具有新型碳基阳极和新型双掺杂层状阴极材料的高性能锂离子电池。 阳极是自立碳纤维材料，阴极是通式LiMxNyCo1-x-yO2（0.01＆nlE; x，y＆nlE; 0.2）的双重掺杂的锂钴氧化物，其中M是二价碱土金属阳离子，N是 二价过渡金属阳离子。 使用上述材料组装了2016个纽扣电池的锂离子电池，其以1℃的速率输送60-85mAhg-1的比容量，并且即使在2.9-4.1V之间循环时也显示出优异的90-95％的循环稳定性。

公开(公告)号：US09882206B2

公开(公告)日：2018-01-30

申请号：US13880306

申请日：2011-03-29

Applicant: Sukumaran Gopukumar ,  Chandrasekaran Nithya ,  Ramasamy Thirunakaran ,  Arumugam Sivashanmugam ,  Sundeep Kumar Dhawan ,  Rakesh Behari Mathur ,  Priyanka Heda Maheshwari

Inventor： Sukumaran Gopukumar ,  Chandrasekaran Nithya ,  Ramasamy Thirunakaran ,  Arumugam Sivashanmugam ,  Sundeep Kumar Dhawan ,  Rakesh Behari Mathur ,  Priyanka Heda Maheshwari

IPC: H01M10/0525 ,  H01M4/36 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/525 ,  H01M4/587 ,  C01D15/02

CPC classification number: H01M4/366 ,  C01D15/02 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525

Abstract: A new high performing lithium ion cell having new carbon based anode and new dual doped layered cathode materials. The anode is a self standing carbon fibrous material and the cathode is a dual doped Lithium cobalt oxide of general formula LiMxNyCo1−x−yO2 (0.01≦x, y≦0.2) wherein M is a divalent alkaline earth metal cation and N is a divalent transition metal cation. Lithium ion cells of 2016 coin cells were assembled using the above materials deliver specific capacity of 60-85 mAhg−1 at 1 C rate and exhibit excellent cycling stability of 90-95% even after 200 cycles when cycled between 2.9-4.1V.

公开(公告)号：US07955663B2

公开(公告)日：2011-06-07

申请号：US11934816

申请日：2007-11-05

Applicant: Rakesh Behari Mathur ,  Chhotey Lal Nil ,  Tersem Lal Dhami ,  Bhanu Pratap Singh ,  Anil Kumar Gupta ,  Jagdish Ghawana

Inventor： Rakesh Behari Mathur ,  Chhotey Lal Nil ,  Tersem Lal Dhami ,  Bhanu Pratap Singh ,  Anil Kumar Gupta ,  Jagdish Ghawana

IPC: H01T14/00

CPC classification number: B82Y40/00 ,  B82Y30/00 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/06 ,  Y10S427/102

Abstract: Processes for the simultaneous and selective growth of single walled and multiwalled carbon nanotubes in a single set of experiments are disclosed. The processes may include preparing a graphite electrode rod containing catalyst selected from Fe, Co, Ni, and a mixture thereof, acting as an anode. The process may include preparing another graphite electrode rod, each electrode having a distal and a proximal end. The process may include placing the above said two electrodes parallel to each other and their axis being substantially aligned in a chamber. The process may further include creating a DC-arc discharge inside the chamber by applying a DC-current voltage. The process may further include an cooling assembly having a cooling coil that surrounds the two electrodes. The cooling assembly may be used to maintain a temperature gradient that permits the depositing of single walled and multiwalled carbon nanotubes simultaneously in one experiment.

Abstract translation: 公开了在单组实验中同时和选择性生长单壁和多壁碳纳米管的方法。 该方法可以包括制备用作阳极的含有选自Fe，Co，Ni及其混合物的催化剂的石墨电极棒。 该方法可以包括制备另一个石墨电极棒，每个电极具有远端和近端。 该过程可以包括将上述两个电极彼此平行放置，并且它们的轴基本上对齐在腔室中。 该过程还可以包括通过施加直流电压来在室内产生直流电弧放电。 该方法还可以包括具有围绕两个电极的冷却盘管的冷却组件。 冷却组件可用于保持温度梯度，其允许在一个实验中同时沉积单壁和多壁碳纳米管。

公开(公告)号：US20080217161A1

公开(公告)日：2008-09-11

申请号：US11934816

申请日：2007-11-05

Applicant: Rakesh Behari Mathur ,  Chhotey Lal Nil ,  Tersem Lal Dhami ,  Bhanu Pratap Singh ,  Anil Kumar Gupta ,  Jagdish Ghawana

Inventor： Rakesh Behari Mathur ,  Chhotey Lal Nil ,  Tersem Lal Dhami ,  Bhanu Pratap Singh ,  Anil Kumar Gupta ,  Jagdish Ghawana

IPC: C01B31/02 ,  B01J19/08

CPC classification number: B82Y40/00 ,  B82Y30/00 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/06 ,  Y10S427/102

Abstract: The present invention provides a process for the simultaneous and selective growth of single walled and multiwalled carbon nanotubes using electric arc discharge technique. According to present development it is possible to synthesise and collect catalyst free carbon nanotubes from cathode deposit. A mechanism of cooling coil arrangement was designed and used inside the arc discharge chamber so as to be capable to grow sufficient amount of single walled carbon nanotubes in the form of webs surrounding the coil. The present invention offers a scalable way for producing both SWNTs and MWNTs in the single run.

Abstract translation: 本发明提供了使用电弧放电技术同时选择性生长单壁和多壁碳纳米管的方法。 根据目前的发展情况，可以从阴极沉积物合成和收集无催化剂的碳纳米管。 在电弧放电室内设计并使用冷却盘管装置的机构，以便能够以围绕线圈的腹板的形式生长足够量的单壁碳纳米管。 本发明提供了在单次运行中生产两个SWNT和MWNT的可扩展方式。