Free organic solvent ink containing graphite, carboxymethyl cellulose and microfibrillated cellulose as active material, dispersing and binder, respectively, has been formulated to produce flexible and eco- sustainabl...Free organic solvent ink containing graphite, carboxymethyl cellulose and microfibrillated cellulose as active material, dispersing and binder, respectively, has been formulated to produce flexible and eco- sustainable electrodes for lithium ion batteries. Content ratio of components and dispersion protocol were tailored in order to have theological properties suitable for a large and cheap manufacturing process as well as screen printing. The bio-sourced printed electrodes exhibit a high porosity value of 70% that limits the electrochemical performances. However, the calendering process enhances electrode performances by increasing the reversible capacity from 85 until 315 mAh/g and reducing porosity to an optimal value of 34%. Moreover the introduction of 2% w/w of monofluoro-ethylene carbonate in the electrolyte reduced their reversible capacity loss of 11% in the printed electrode.展开更多
With the depletion of fossil fuel and increasing environmental concerns,the modernized era of technology is urgently in need for sustainable and eco-friendly materials.The industrial sector certainly possesses enough ...With the depletion of fossil fuel and increasing environmental concerns,the modernized era of technology is urgently in need for sustainable and eco-friendly materials.The industrial sector certainly possesses enough resources for the production of available cost-effective,renewable,reusable,and sustainable raw materials.Ul-tralight,eco-friendly and renewable cellulosic aerogels are one of the most accentuated materials in the polymer research field due to their highly abundant and inexpensive raw material,biocompatibility,high specific surface area and other feasible properties.This review summarizes the recent progress in cellulosic aerogels,their main processing route,including a detailed description of versatile new solvents along with some essential properties of cellulosic aerogels and illustrate how their variety of chemical functionalities can be adjusted for applications in the fields of thermal insulation,fire retardant,antibacterial,CO 2 capture and energy storage systems.A de-tailed morphological analysis has been elaborated and effect of processing route,solvent medium and drying procedure on the morphology of cellulosic aerogels is also decribed.Finally,we propose some suggestions to the functionalization such as silanized cellulosic aerogels and their applications in antibacterial activity yet they are still in progress and need further study for future research.展开更多
基金partially supported by theénergies du Futur Carnot Institute(Investissements d’Avenir-grant agreement No.ANR-11-CARN-030-01)the facilities of the Tek Li Cell platform funded by the Région Rhone-Alpes(ERDF:European Regional Development Fund)
文摘Free organic solvent ink containing graphite, carboxymethyl cellulose and microfibrillated cellulose as active material, dispersing and binder, respectively, has been formulated to produce flexible and eco- sustainable electrodes for lithium ion batteries. Content ratio of components and dispersion protocol were tailored in order to have theological properties suitable for a large and cheap manufacturing process as well as screen printing. The bio-sourced printed electrodes exhibit a high porosity value of 70% that limits the electrochemical performances. However, the calendering process enhances electrode performances by increasing the reversible capacity from 85 until 315 mAh/g and reducing porosity to an optimal value of 34%. Moreover the introduction of 2% w/w of monofluoro-ethylene carbonate in the electrolyte reduced their reversible capacity loss of 11% in the printed electrode.
基金We acknowledge the financial support from National Natural Sci-ence Foundation of China(NSFC,Grant No.51303151)Sichuan Province Youth Science and Technology Innovation Team(Grant No.2016TD0026)Sichuan Province Science and Engineering Project(Grant No.2018HH0087).
文摘With the depletion of fossil fuel and increasing environmental concerns,the modernized era of technology is urgently in need for sustainable and eco-friendly materials.The industrial sector certainly possesses enough resources for the production of available cost-effective,renewable,reusable,and sustainable raw materials.Ul-tralight,eco-friendly and renewable cellulosic aerogels are one of the most accentuated materials in the polymer research field due to their highly abundant and inexpensive raw material,biocompatibility,high specific surface area and other feasible properties.This review summarizes the recent progress in cellulosic aerogels,their main processing route,including a detailed description of versatile new solvents along with some essential properties of cellulosic aerogels and illustrate how their variety of chemical functionalities can be adjusted for applications in the fields of thermal insulation,fire retardant,antibacterial,CO 2 capture and energy storage systems.A de-tailed morphological analysis has been elaborated and effect of processing route,solvent medium and drying procedure on the morphology of cellulosic aerogels is also decribed.Finally,we propose some suggestions to the functionalization such as silanized cellulosic aerogels and their applications in antibacterial activity yet they are still in progress and need further study for future research.
