公开(公告)号：US20130171523A1

公开(公告)日：2013-07-04

申请号：US13338240

申请日：2011-12-28

Applicant: Zhi CHEN ,  Ying WANG ,  Fengguan ZHAO ,  Zilong YU ,  Yuansen XIE ,  Jianxun REN ,  Jiajai HU ,  Leimin XU

Inventor： Zhi CHEN ,  Ying WANG ,  Fengguan ZHAO ,  Zilong YU ,  Yuansen XIE ,  Jianxun REN ,  Jiajai HU ,  Leimin XU

IPC: H01M4/131 ,  H01B1/00

CPC classification number: H01B1/08 ,  H01M4/364 ,  H01M4/525

Abstract: The present invention relates to the field of lithium-ion battery, and particularly to high-capacity cathode material, and high-energy density lithium-ion secondary battery prepared using the same. The cathode material comprises cathode active material, a binder and a conductive agent, in which the cathode active material is a compound material of lithium cobalt oxide-based active material A and nickel-based active material B pretreated before being mixed, and the mass ratio B/A of the lithium cobalt oxide-based active material A and nickel-based active material B is between 0.82 and 9. The present invention can produce a battery having both larger capacity and higher energy density, and address the problem of gas generation in the battery at high temperature.

Abstract translation: 本发明涉及锂离子电池领域，特别涉及高容量阴极材料，以及使用该锂离子电池制备的高能量密度锂离子二次电池。 阴极材料包括阴极活性材料，粘合剂和导电剂，其中阴极活性材料是基于钴酸锂的活性材料A和在混合前预处理的镍基活性材料B的复合材料，质量比 锂钴氧化物系活性物质A和镍系活性物质B的B / A为0.82以上9以下。本发明能够生产容量大，能量密度高的电池，能够解决气体发生问题 电池在高温下。

公开(公告)号：US20120115024A1

公开(公告)日：2012-05-10

申请号：US13086570

申请日：2011-04-14

Applicant: Zhi CHEN ,  Ying WANG ,  Fenggang ZHAO ,  Zilong YU ,  Yuansen XIE ,  Jianxun XIE ,  Jiajai HU ,  Leimin XU

Inventor： Zhi CHEN ,  Ying WANG ,  Fenggang ZHAO ,  Zilong YU ,  Yuansen XIE ,  Jianxun XIE ,  Jiajai HU ,  Leimin XU

IPC: H01M2/08 ,  H01M4/64

CPC classification number: H01M4/667 ,  H01M4/366 ,  H01M4/628 ,  H01M4/664 ,  H01M10/4235 ,  H01M2004/028

Abstract: A cathode electrode for lithium-ion secondary battery includes a current collector; and a cathode material layer comprising a bottom layer coated on the current collector and a top layer coated on the bottom layer. The lithium-ion transfer resistance of the active material particles in the bottom layer is smaller than that of the active material particles in the top layer, optimize the concentration polarization occurred in the cathode electrode during discharge, and enabling the lithium-ion secondary battery using the cathode electrode to be improved both in energy density and safety, and be further enhanced in specific capacity.

Abstract translation: 锂离子二次电池用阴极包括集电体， 以及包含涂布在集电体上的底层和涂覆在底层上的顶层的阴极材料层。 底层中活性物质颗粒的锂离子转移电阻小于顶层活性物质颗粒的锂离子转移电阻，使放电期间阴极发生的浓度极化最优化，使锂离子二次电池使用 阴极能够在能量密度和安全性方面得到改善，并且能够进一步提高比容量。

公开(公告)号：US20120107719A1

公开(公告)日：2012-05-03

申请号：US13379693

申请日：2010-03-30

Applicant: Shijun Liao ,  Huaping Zhu ,  Leimin Xu ,  Huaneng Su ,  Lijun Yang ,  Yanni Wu ,  Zhenxing Liang

Inventor： Shijun Liao ,  Huaping Zhu ,  Leimin Xu ,  Huaneng Su ,  Lijun Yang ,  Yanni Wu ,  Zhenxing Liang

IPC: H01M4/92 ,  B05D3/02 ,  B05D5/12 ,  H01M4/90 ,  H01M8/10

CPC classification number: H01M4/8803 ,  H01M4/8828 ,  H01M4/9075 ,  H01M4/9083 ,  H01M4/92

Abstract: This invention discloses an electrocatalyst for membrane electrode assembly, and its preparation method, as well as a fuel cell membrane electrode assembly. An electrocatalyst for fuel cell application, it is featured that the electrocatalyst is prepared by supporting precious metal (10-60 wt %) on a composite carrier which is prepared by depositing water-containing substance (0.3-10 wt %) on carbon material; Using the catalyst invented by this invention as anode catalyst, an fuel cell membrane electrode assembly with excellent non-humidification performance can be prepared by normal procedures. No need to construct a water retention layer, no need to add water retention material in proton exchange membrane, it avoids the possible problems caused by adding water attention material into proton exchange membrane or inserting a water retention layer. The approach suggested by this invention is a simple and effective approach to realize non-humidification membrane electrode assembly.

Abstract translation: 本发明公开了一种用于膜电极组件的电极催化剂及其制备方法以及燃料电池膜电极组件。 一种用于燃料电池应用的电催化剂，其特征在于通过在通过在碳材料上沉积含水物质（0.3-10重量％）制备的复合载体上支持贵金属（10-60重量％）来制备电催化剂; 使用本发明发明的催化剂作为阳极催化剂，可以通过常规方法制备具有优异的非加湿性能的燃料电池膜电极组件。 不需要构建保水层，不需要在质子交换膜中加入保水材料，避免了将注水材料加入质子交换膜或插入保水层引起的可能问题。 本发明提出的方法是实现非加湿膜电极组件的简单有效的方法。