Organic–inorganic composite polymer electrolyte based on PEO–LiClO4 and nano-Al2O3 filler for lithium polymer batteries: Dielectric and transport properties

A new solid polymer electrolyte incorporating Li10GeP2S12 into a polyethylene oxide matrix for all-solid-state lithium batteries

“…It is a common approach that inorganic oxides and ceramic fillers such as Al 2 O 3 and SiO 2 are added into the PEO-LiX matrix, which leads to ionic conductivity enhanced by the promotion of lithium ion transport in the PEO matrix [11]. In order to explore the mechanisms of this phenomenon, the phase transition behavior for each electrolyte was characterized by DSC, and the data corresponding to DSC curves are summarized in Table 1.…”

“…The addition of these ceramic particle fillers is believed to hinder the polymer crystallization or to contribute highly conductive interface layers between polymer and ceramic [11e14]. The ceramic fillers are generally divided into two categories: inactive fillers that are not involved in lithium ion conduction process (e.g., Al 2 O 3 [11] and SiO 2 [12]) and active ones that participate in lithium ion transport (e.g., Li 3 N [13]). However, high ionic conductivities (>10 À4 S cm À1 ) can be obtained in these composites when they have very high filler contents (e.g.…”

Polymer composites and blends for battery separators: State of the art, challenges and future trends

“…In line with the previous analyzed fillers, this inorganic filler also promotes an increase of the ionic conductivity up to 1.1 Â 10 À2 S/cm at RT. A strong increase of the ionic conductivity was reported in the Al 2 O 3 /PEO CPE system, as well as an increase of the polymer amorphous phase promoted by the nano-Al 2 O 3 filler [90]. The reduction of the ionic conductivity temperature dependence could be also achieved by adding this filler to the polymer matrices [75], as well as an improvement of the interfacial properties [91] and the enhancement of the thermal [73] and electrochemical [73,74] stabilities.…”

A new composite solid electrolyte PEO/Li10GeP2S12/SN for all-solid-state lithium battery

“…The all-solid-state battery using this new SPE at 60 C exhibited good capacity retention ($75%) after 50 cycles with a charge-discharge rate of 0.1C. In addition to the complicated and cautious decorating the polymer chains [11], the introduction of organic small molecular plasticizers [12] or inorganic ceramic fillers [13,14] into the polymer matrix are regarded as the most convenient and important methods to enhance the Li + conductivity. J. Hassoun [15] reported a new class of quaternary polymer electrolyte that comprise PEO, LiTFSI, Pyr A,4 TFSI as an ionic liquid, and a SiO 2 filler.…”