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A non-profit Spanish research institute from Madrid has designed and synthesized metal oxide cathodes for Mg batteries. Superior intercalation of Mg-ions results in the high energy density. Cathodes of high capacity (up to 250 mAh/g) and ultralong life (˃3000 cycles). They are interested in license and technical cooperation agreements.
The magnesium battery has a very large theoretical capacities. Owing to the divalent nature of Mg2+ ions, it has substantially higher volumetric and gravimetric capacities. (3833 mAh cm-3 and 2205mAh g-1 respectively). Mg batteries do not experience the irreversible capacity loss due to the solid electrolyte interphase (SEI) formation that usually occurs in many battery systems including Li and Na. In addition, Mg has better stability in the ambient environment hence the battery packaging does not require any inert atmosphere. Mg metal also lacks dendrite formation and associated battery failure due to internal short circuit.
The main challenge of Mg battery research is the development of compatible cathode material. Unlike the Li+ ion, the Mg2+ divalent ion is more electropositive. Since the ionic radii of both the ions are more or less same (Li+ - 0.76Å, Mg2+ - 0.72Å) the effective charge density of Mg ion is even higher. Hence, Mg2+ ion exhibit more effective columbic interaction with the cathode materials. This interaction kinetically sluggish Mg-ion intercalation to the cathode lattice, and causes low energy/ power density.
In order to overcome the energy density and power density limitations of Mg batteries, they have designed and synthesized defective metal oxide cathodes. Mg-ion storage, in this case, follows a pseudocapacitive mechanism, where defects such as oxygen vacancies act as intercalation pathways for Mg-ions. Diffusion independent nature of pseudocapacitive mechanism enables ultrafast charging (high power density) of the Mg battery.
They are looking for partners/ collaborators in battery research area for license and technical cooperation agreements to develop defect engineered cathode materials, fabrication of pouch and cylindrical type Mg batteries and its commercialization.
Superior intercalation of Mg-ions due to the presence of crystal defects results in the high energy density. Cathodes of high capacity (up to 250 mAh/g) and ultralong life (˃3000 cycles) can be engineered and synthesized through this method. The strategy of defect induced pseudocapacitive Mg-ion storage can be extended for numerous metal oxide based cathodes for exceptional Mg-ion storage.
Coin battery tested and validated in the lab
They are looking for partners/ collaborators in battery research area for license and technical cooperation agreements capable of:
1. Scaling up of the newly developed defect engineered cathode materials.
2.Fabrication of pouch and cylindrical type Mg batteries composed of the newly developed defective cathodes.
3.Fabrication, validation, and commercialization of the newly developed ultralong life Mg batteries.