With the fast development of renewable energy sources, such as wind and solar plant, large-scale and high energy storage system are becoming extremely important to realize the load leveling of these intermittent energies into the grid. The most promising technology for that are secondary batteries (rechargeable) because high energy conversion, simple design, flexibility, easy to maintain. In order to meet the low cost policy in the market, sodium based secondary batteries are the best deal actually. However, the currently technology of batteries use liquid electrolytes as ion transport media, and these liquid electrolytes are based on organic solvents that are toxic and volatile, and the use of these flammable liquids in batteries raises safety concerns. The most powerful solution on it is switch on all solid state material such as polymer films, ceramics, etc… Here, we offer an overview of our recent developments on polymer electrolytes for Sodium-ion batteries. Polymer electrolytes were prepared through different techniques, exploiting techniques very easily to applied on an industrial point of view, simple casting and UV-curing. All samples were thoroughly characterized in the physico-chemical and electrochemical viewpoint. They exhibited excellent ionic conductivity and wide electrochemical stability window, which ensure safe operation at ambient conditions. Electrochemical performances in lab-scale devices are presented, evaluated by means of cycling voltammetry and galvanostatic charge/discharge cycling exploiting different electrode materials (prepared by water-based procedures with green carboxymethylcellulose as binder). Work on Na-ion polymer batteries for moderate temperature application is at an early stage, only lab-scale cells were demonstrated so far. Nevertheless, with the appropriate choice and optimisation of electrode/electrolyte materials (and succesfull combination thereof), the intriguing characteristics of the newly developed SPEs here presented postulates the possibility of their effective implementation in safe, durable and high energy density secondary Na-based polymer devices conceived for green-grid storage and operating at ambient and/or sub-ambient temperatures.

Polymer Electrolytes Prepared by Industrially Compatible Processes for Renewable Energy Storage in Sodium Batteries / Colo', Francesca; Bella, Federico; Nair, JIJEESH RAVI; Gerbaldi, Claudio. - ELETTRONICO. - 5:(2017), pp. 60-60. (Intervento presentato al convegno XXVI Congresso Nazionale della Società Chimica Italiana tenutosi a Paestum (Italy) nel 10-14 Settembre 2017).

Polymer Electrolytes Prepared by Industrially Compatible Processes for Renewable Energy Storage in Sodium Batteries

COLO', FRANCESCA;BELLA, FEDERICO;NAIR, JIJEESH RAVI;GERBALDI, CLAUDIO
2017

Abstract

With the fast development of renewable energy sources, such as wind and solar plant, large-scale and high energy storage system are becoming extremely important to realize the load leveling of these intermittent energies into the grid. The most promising technology for that are secondary batteries (rechargeable) because high energy conversion, simple design, flexibility, easy to maintain. In order to meet the low cost policy in the market, sodium based secondary batteries are the best deal actually. However, the currently technology of batteries use liquid electrolytes as ion transport media, and these liquid electrolytes are based on organic solvents that are toxic and volatile, and the use of these flammable liquids in batteries raises safety concerns. The most powerful solution on it is switch on all solid state material such as polymer films, ceramics, etc… Here, we offer an overview of our recent developments on polymer electrolytes for Sodium-ion batteries. Polymer electrolytes were prepared through different techniques, exploiting techniques very easily to applied on an industrial point of view, simple casting and UV-curing. All samples were thoroughly characterized in the physico-chemical and electrochemical viewpoint. They exhibited excellent ionic conductivity and wide electrochemical stability window, which ensure safe operation at ambient conditions. Electrochemical performances in lab-scale devices are presented, evaluated by means of cycling voltammetry and galvanostatic charge/discharge cycling exploiting different electrode materials (prepared by water-based procedures with green carboxymethylcellulose as binder). Work on Na-ion polymer batteries for moderate temperature application is at an early stage, only lab-scale cells were demonstrated so far. Nevertheless, with the appropriate choice and optimisation of electrode/electrolyte materials (and succesfull combination thereof), the intriguing characteristics of the newly developed SPEs here presented postulates the possibility of their effective implementation in safe, durable and high energy density secondary Na-based polymer devices conceived for green-grid storage and operating at ambient and/or sub-ambient temperatures.
2017
9788886208857
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2683450
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