Compared with traditional lead-acid batteries, nickel–cadmium batteries and nickel-hydrogen batteries, lithium-ion batteries (LIBs) are much more environmentally friendly and much higher energy density. Besides, LIBs own the characteristics of no memory effect, high charging and discharging rate, long cycle life and high energy conversion rate. Therefore, LIBs have been widely considered as the most promising power source for mobile devices. Commonly used LIBs contain carbonate based liquid electrolytes. Such electrolytes own high ionic conductivity and excellent wetting ability. However, the use of highly flammable and volatile organic solvents in them may lead to problems like leakage, thermo runaway and parasitic interface reactions, which limit their application. Solid polymer electrolytes (SPEs) can solve these problems, while they also bring new challenges such as poor interfacial contact with electrodes and low ionic conductivity at room temperature. Many approaches have been tried to solve these problems. This article is divided into three parts to introduce polyethylene oxide (PEO) based polymer-ceramic hybrid solid electrolyte, which is one of the most efficient way to improve the performance of SPEs. The first part focuses on polymer-lithium salt (LiX) matrices, including their ionic conduction mechanism and impact factors for their ionic conductivity. In the second part, the influence of both active and passive ceramic fillers on SPEs are reviewed. In the third part, composite SPEs’ preparation methods, including solvent casting and thermocompression, are introduced and compared. Finally, we propose five key points on how to make composite SPEs with high ionic conductivity for reference.

中文翻译：

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基于PEO的聚合物-陶瓷杂化固体电解质：综述

与传统的铅酸电池，镍镉电池和镍氢电池相比，锂离子电池（LIB）更加环保，能量密度更高。此外，锂离子电池具有无记忆效应，高充放电率，长循环寿命和高能量转化率的特点。因此，LIB被广泛认为是移动设备最有前途的电源。常用的LIB包含碳酸盐基液体电解质。这样的电解质具有高离子电导率和优异的润湿能力。但是，在其中使用高度易燃和挥发性的有机溶剂可能会导致诸如泄漏，热失控和寄生界面反应等问题，从而限制了它们的应用。固态聚合物电解质（SPE）可以解决这些问题，同时它们也带来了新的挑战，例如与电极的界面接触不良以及室温下的离子传导率低。已经尝试了许多方法来解决这些问题。本文分为三个部分，介绍基于聚环氧乙烷（PEO）的聚合物-陶瓷混合固体电解质，这是提高SPE性能的最有效方法之一。第一部分着重于聚合物锂盐（LiX）基质，包括其离子传导机理和影响其离子传导率的因素。在第二部分中，回顾了有源和无源陶瓷填料对SPE的影响。第三部分介绍了复合固相萃取的制备方法，包括溶剂浇铸和热压。最后，