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Cation-Substituted Na_3SbS_4 Electrolyte with High Sodium-Ion Conductivity

机译:具有高钠离子电导率的阳离子取代的NA_3SBS_4电解质

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Solid electrolytes are key materials for developing all-solid-state rechargeable batteries. In particular, developing all-solid-state Na/S batteries is desired because of using abundant Na and S resources and their high energy density. To realize all-solid-state Na batteries, superior solid electrolytes with both high conductivity and good ductility are needed. Sulfide glass electrolytes are useful as a precursor for precipitating metastable crystalline phases which tend to have considerably high ionic conductivity. We reported glass-ceramic electrolytes with cubic-Na_3PS_4 metastable phase having the conductivity of 10~(-4) S cm~(-1). Studies on increasing Na~+ conductivity in sulfides have been widely done and Na_3SbS_4 with higher Na~+ conductivities of 10~(-3) S cm~(-1) have been developed. In particular, the Na_3SbS_4 electrolyte has an advantage of high safety in air atmosphere because of the formation of a hydrate with suppressing the generation of harmful H_2S gas.
机译:固体电解质是用于开发全固态可充电电池的关键材料。 特别地,由于使用丰富的NA和S资源及其高能量密度,因此需要开发全固态NA / S电池。 为了实现全固态Na电池,需要具有高导电性和良好延展性的优异固体电解质。 硫化物玻璃电解质可用作沉淀稳定的晶体相的前体,其倾向于具有相当高的离子电导率。 我们报道了具有10〜(-4)Scm〜(-1)的相对-NA_3PS_4亚稳态相的玻璃陶瓷电解质。 已经开发了对硫化物中硫化物中Na〜+电导率的增加的研究,并且已经开发了具有较高Na〜+导电率的Na_3SBS_4的10〜(-3)Scm〜(-1)。 特别地,Na_3SBS_4电解质具有气氛具有高安全性的优点,因为抑制了抑制了有害的H_2S气体的水合物。

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