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Electrode material for lithium-based electrochemical energy storage

Summary

The invention ("CCZFE") describes a process for producing carbon coated nickel ferrite nanoparticles and their use as electrode material in lithium ion batteries.

Technology Benefits

New materials provide enhanced specific capacities for elevated applied current densities, e.g.: 500 mAh/g at 4.0 A/g and 1000 mAh/g at
0.1 A/g
 Significantly improved cycling stability
 Highly cost-effective technology
 Easily applicable for large scale industrial production
 Prototypes as well as further data and information available on demand

Technology Application

The use of these carbon coated metal oxide nanoparticles enables the realization of environmentally friendly, cost-effective, and lightweight electrochemical ener-gy storage devices for future large scale applications.
Transition metal oxides provide higher specific capacities compared to graphite, which is the actual state-of–the-art in Li-ion batteries.

Detailed Technology Description

The use of these carbon coated metal oxide nanoparticles enables the realization of environmentally friendly, cost-effective, and lightweight electrochemical ener-gy storage devices for future large scale applications.
Transition metal oxides provide higher specific capacities compared to graphite, which is the actual state-of–the-art in Li-ion batteries. Nevertheless, the main drawback of these conversion materials so far has been a reduced cycling stability and limited obtainable specific capacities at elevated applied current densities.
However, these drawbacks could be overcome by utilizing the new carbon coated metal oxide nanoparticles. As a matter of fact, by using these materials it is possible to realize batteries offering a superior electro-chemical performance at high current densities and advanced cycle life. Moreover, such enhanced electrodes are easily recyclable and 100% environmentally friendly.

Type of Cooperation

Licensing

Application Date

23/02/2012 00:00:00

Application No.

DE201210101457 20120223

Classes

- international:
C04B35/30; C04B41/85; H01M4/131; H01M4/1391; H01M4/1393
- cooperative:
B82Y30/00; C09C1/22; H01M10/0525; H01M4/0402; H01M4/0471; H01M4/1391; H01M4/366; H01M4/621; H01M4/625; H01M6/14; C01P2002/32; C01P2002/50; C01P2002/52; C01P2002/54; C01P2002/72; C01P2002/82; C01P2002/88; C01P2004/03; C01P2004/32; C01P2004/61; C01P2004/62; C01P2004/64; C01P2006/12; C01P2006/40; H01M2220/10; H01M2220/20

Others

Patent application

ID No.

3265

Country/Region

Germany