Invention Grant
US09590240B2 Metal/non-metal co-doped lithium titanate spheres with hierarchical micro/nano architectures for high rate lithium ion batteries
有权
金属/非金属共掺杂的钛酸锂球体，具有用于高速率锂离子电池的分级微/纳米结构
- Patent Title: Metal/non-metal co-doped lithium titanate spheres with hierarchical micro/nano architectures for high rate lithium ion batteries
- Patent Title (中): 金属/非金属共掺杂的钛酸锂球体，具有用于高速率锂离子电池的分级微/纳米结构
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Application No.: US14250369Application Date: 2014-04-10
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Publication No.: US09590240B2Publication Date: 2017-03-07
- Inventor: Chenmin Liu , Lifeng Cai , Shing Yan Choi
- Applicant: Nano and Advanced Materials Institute Limited
- Applicant Address: HK Hong Kong
- Assignee: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED
- Current Assignee: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED
- Current Assignee Address: HK Hong Kong
- Agent Daniel R. Collopy
- Main IPC: C01G23/00
- IPC: C01G23/00 ; H01M4/36 ; H01M4/485 ; H01M10/0525 ; H01M4/02
Abstract:
The present invention is to provide a lithium titanate (LTO) material for a lithium ion battery. The LTO material has hierarchical micro/nano architecture, and comprises a plurality of micron-sized secondary LTO spheres, and a plurality of pores incorporated with metal formed by a metal dopant. Each of the micron-sized secondary LTO spheres comprises a plurality of nano-sized primary LTO particles. A plurality of the nano-sized primary LTO particles is encapsulated by a non-metal layer formed by a non-metal dopant. The LTO material of the present invention has high electrical conductivity for increasing the capacity at high charging/discharging rates, and energy storage capacity.
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