公开(公告)号：US20180114982A1

公开(公告)日：2018-04-26

申请号：US15331934

申请日：2016-10-24

申请人： Nano and Advanced Materials Institute Limited

发明人： Yeming Xu ,  Quanda Zhang ,  Kwok Keung Paul Ho

IPC分类号： H01M4/505 ,  C01G45/12 ,  H01M10/0525

CPC分类号： H01M4/505 ,  C01G45/1242 ,  C01P2002/32 ,  C01P2002/54 ,  C01P2004/62 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/366 ,  H01M4/625 ,  H01M10/0525

摘要： Lithium manganese oxide material used in lithium ion battery is disclosed herein. The lithium manganese oxide material may be doped with suitable dopant. The lithium manganese oxide material may be represented by a first formula of Li1+xMyMn2−y−xO4, wherein the value of ‘x’, in the first formula, satisfies a relation −0.1

公开(公告)号：US20180248178A1

公开(公告)日：2018-08-30

申请号：US15441475

申请日：2017-02-24

申请人： Nano and Advanced Materials Institute Limited

发明人： Chung Pui Chan ,  Yeming Xu ,  Chao Cai ,  Kowk Keung Paul Ho

IPC分类号： H01M4/36 ,  H01M10/0525 ,  H01M4/583 ,  H01M4/04 ,  H01M4/485

CPC分类号： H01M4/366 ,  H01M4/04 ,  H01M4/485 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027

摘要： Disclosed are composite anodes for a lithium ion battery containing carbon material core particles and a coating layer of LTO particles over the carbon material core particles, the coating layer of LTO particles at least partially covering the carbon material core particles. Also disclosed are anodes for a lithium ion battery containing activating treated surface modified graphite particles, wherein at least one of an inorganic acid or an oxidizing agent is used to treat and modify the surface of the graphite particles.

公开(公告)号：US10127342B2

公开(公告)日：2018-11-13

申请号：US15093763

申请日：2016-04-08

申请人： Nano and Advanced Materials Institute Limited

发明人： Jianzhuo Xin ,  Wing Yu Chau ,  Yingkai Jiang ,  Yeming Xu ,  Kwok Keung Ho

IPC分类号： G06G7/54 ,  G06F17/50 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585 ,  H01M4/02

摘要： A method of designing and modifying electrode materials for a battery device is disclosed in this invention. The method includes constructing a first principle model for battery electrode material properties estimation and screening. The method also includes applying a structural and compositional modification on the first principle model. In some embodiments, the method includes developing a hybrid physical model to estimate the battery cell cycling behavior with the calculated and experimental parameters. The method and the simulation models have the advantage that both atomic level and physical structure will be considered for the battery electrode and its modified derivatives with small compositional or structural changes. Therefore, both the time consumption and accuracy for battery electrode material designing and modification for specific application requirements can be improved.

公开(公告)号：US20150333373A1

公开(公告)日：2015-11-19

申请号：US14709525

申请日：2015-05-12

申请人： Nano and Advanced Materials Institute Limited

发明人： Kam Piu Ho ,  Kwok Keung Paul Ho ,  Ranshi Wang ,  Yeming Xu ,  Wai Chun Luk ,  Mei Mei Hsu

IPC分类号： H01M10/0569 ,  H01M10/0525 ,  H01M10/0567

CPC分类号： H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2300/0037

摘要： The present application discloses a high voltage electrolyte including an electrolyte solvent which includes a mixture of a dinitrile solvent and a nitrile solvent and is stable at voltage of about 5 V or above. The dinitrile solvent may include at least one selected from the group consisting of malononitrile, succinonitrile, glutaronitrile, adiponitrile, pimelonitrile, suberonitrile, azelanitrile and sebaconitrile. The nitrile solvent may include at least one selected from the group consisting of acetonitrile, propionitrile, butyronitrile, pivalonitrile and capronitrile. The present application also discloses a lithium ion battery including the above high voltage electrolyte. The lithium ion battery exhibits a cyclic performance of greater than about 300 cycles and with a capacity retention of greater than about 80%.

摘要翻译： 本申请公开了一种包括电解质溶剂的高压电解质，其包括二腈溶剂和腈溶剂的混合物，并且在约5V或更高的电压下是稳定的。 二腈溶剂可以包括选自丙二腈，丁二腈，戊二腈，己二腈，庚二腈，辛二腈，壬烯腈和癸二腈中的至少一种。 腈溶剂可以包括选自乙腈，丙腈，丁腈，新戊腈和癸腈中的至少一种。 本申请还公开了包括上述高电压电解质的锂离子电池。 锂离子电池显示大于约300个循环的循环性能，其容量保持率大于约80％。

公开(公告)号：US09711774B2

公开(公告)日：2017-07-18

申请号：US14957611

申请日：2015-12-03

申请人： Nano and Advanced Materials Institute Limited

发明人： Chenmin Liu ,  Yeming Xu ,  Chi Ho Kwok ,  Ning Tu

IPC分类号： H01M2/16 ,  H01M2/34 ,  H01M10/0525 ,  H01M2/14

CPC分类号： H01M2/1686 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/1673 ,  H01M10/0525 ,  H01M2200/10

摘要： The present application provides a lithium ion battery including a thermal sensitive layer comprising polymer particles. The thermal sensitive layer may be disposed between the electrodes and the separator. When the lithium ion battery is under thermal runaway condition and the internal temperature rises to a critical temperature, the polymer particles undergo a thermal transition process (melting) to form an insulating barrier on the electrodes, which blocks lithium ion transfer between the electrodes and shuts down the internal current of the battery.

公开(公告)号：US09666906B2

公开(公告)日：2017-05-30

申请号：US14709525

申请日：2015-05-12

申请人： Nano and Advanced Materials Institute Limited

发明人： Kam Piu Ho ,  Kwok Keung Paul Ho ,  Ranshi Wang ,  Yeming Xu ,  Wai Chun Luk ,  Mei Mei Hsu

IPC分类号： H01M10/0569 ,  H01M10/0567 ,  H01M10/0525

CPC分类号： H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2300/0037

摘要： The present application discloses a high voltage electrolyte including an electrolyte solvent which includes a mixture of a dinitrile solvent and a nitrile solvent and is stable at voltage of about 5 V or above. The dinitrile solvent may include at least one selected from the group consisting of malononitrile, succinonitrile, glutaronitrile, adiponitrile, pimelonitrile, suberonitrile, azelanitrile and sebaconitrile. The nitrile solvent may include at least one selected from the group consisting of acetonitrile, propionitrile, butyronitrile, pivalonitrile and capronitrile. The present application also discloses a lithium ion battery including the above high voltage electrolyte. The lithium ion battery exhibits a cyclic performance of greater than about 300 cycles and with a capacity retention of greater than about 80%.

公开(公告)号：US20160164065A1

公开(公告)日：2016-06-09

申请号：US14957611

申请日：2015-12-03

申请人： Nano and Advanced Materials Institute Limited

发明人： Chenmin Liu ,  Yeming Xu ,  Chi Ho Kwok ,  Ning Tu

IPC分类号： H01M2/34 ,  H01M2/16 ,  H01M10/0525

CPC分类号： H01M2/1686 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/1673 ,  H01M10/0525 ,  H01M2200/10

摘要： The present application provides a lithium ion battery including a thermal sensitive layer comprising polymer particles. The thermal sensitive layer may be disposed between the electrodes and the separator. When the lithium ion battery is under thermal runaway condition and the internal temperature rises to a critical temperature, the polymer particles undergo a thermal transition process (melting) to form an insulating barrier on the electrodes, which blocks lithium ion transfer between the electrodes and shuts down the internal current of the battery.

摘要翻译： 本申请提供了包括包含聚合物颗粒的热敏层的锂离子电池。 热敏层可以设置在电极和隔膜之间。 当锂离子电池处于热失控状态并且内部温度上升到临界温度时，聚合物颗粒经历热转变过程（熔化）以在电极上形成绝缘屏障，这阻挡了电极之间的锂离子转移和关闭 降低电池的内部电流。