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A Novel Li+‐Conducting Polymer Membrane Gelled by Fluorine‐Free Electrolyte Solutions for Li‐Ion Batteries
Batteries & Supercaps ( IF 5.1 ) Pub Date : 2020-06-12 , DOI: 10.1002/batt.202000078 Maria Assunta Navarra 1 , Akiko Tsurumaki 1 , Francesco Maria Vitucci 2 , Annalisa Paolone 2 , Oriele Palumbo 2 , Stefania Panero 1
Batteries & Supercaps ( IF 5.1 ) Pub Date : 2020-06-12 , DOI: 10.1002/batt.202000078 Maria Assunta Navarra 1 , Akiko Tsurumaki 1 , Francesco Maria Vitucci 2 , Annalisa Paolone 2 , Oriele Palumbo 2 , Stefania Panero 1
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Gel polymer electrolytes (GPEs), composed of poly(vinylidene fluoride) (PVdF), a ternary solvent of ethylene carbonate : propylene carbonate : dimethyl carbonate, and LiBOB, which are characterized by a novel composition with a fluorine‐free lithium salt, are here proposed. GPEs were firstly prepared through a solution casting procedure using the ternary carbonate solution as a solvent (named ex situ prepared membranes), and then activated by being immersed in a 0.7 M LiBOB‐carbonate solution. Fundamental characterizations, including thermal, spectroscopical, mechanical, and electrochemical analyses, were carried out and compared before and after the activation. GPEs, having the same composition, were also prepared by using a novel procedure (named in situ prepared membranes), involving the formation of PVdF membrane and its activation by the LiBOB electrolyte, as well as subsequent electrochemical characterizations, in the same T‐shape cell. Thus prepared lithium‐ion batteries, employing Sn−C and LiFePO4 electrodes, were demonstrated to exhibit a high capacity of 150 mAh g−1 through the course of cycling.
中文翻译：
新型无铅电解质溶液胶凝的锂离子导电聚合物膜，用于锂离子电池
由聚偏二氟乙烯（PVdF），碳酸亚乙酯：碳酸亚丙酯：碳酸二甲酯和LiBOB组成的三元溶剂组成的凝胶聚合物电解质（GPE），其特征是具有无氟锂盐的新型成分在这里建议。GPES是通过溶液流延方法，用三元碳酸盐溶液作为溶剂（名为首先制备易地制备的膜），然后通过被浸渍在0.7M的LiBOB的碳酸盐溶液中活化。在激活之前和之后进行了基本的表征，包括热，光谱，机械和电化学分析。具有相同组成的GPE，也可以通过新颖的方法（原位命名）制备。制备的膜），包括在同一个T形电池中PVdF膜的形成及其被LiBOB电解质激活以及随后的电化学表征。由此证明，使用Sn-C和LiFePO 4电极制备的锂离子电池在循环过程中显示出150 mAh g -1的高容量。
更新日期：2020-06-12
中文翻译：
新型无铅电解质溶液胶凝的锂离子导电聚合物膜，用于锂离子电池
由聚偏二氟乙烯（PVdF），碳酸亚乙酯：碳酸亚丙酯：碳酸二甲酯和LiBOB组成的三元溶剂组成的凝胶聚合物电解质（GPE），其特征是具有无氟锂盐的新型成分在这里建议。GPES是通过溶液流延方法，用三元碳酸盐溶液作为溶剂（名为首先制备易地制备的膜），然后通过被浸渍在0.7M的LiBOB的碳酸盐溶液中活化。在激活之前和之后进行了基本的表征，包括热，光谱，机械和电化学分析。具有相同组成的GPE，也可以通过新颖的方法（原位命名）制备。制备的膜），包括在同一个T形电池中PVdF膜的形成及其被LiBOB电解质激活以及随后的电化学表征。由此证明，使用Sn-C和LiFePO 4电极制备的锂离子电池在循环过程中显示出150 mAh g -1的高容量。
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