All-Solid-State Lithium Organic Battery with Composite Polymer Electrolyte and Pillar[5]quinone Cathode

Abstract

The cathode capacity of common lithium ion batteries (LIBs) using inorganic electrodes and liquid electrolytes must be further improved. Alternatively, all-solid-state lithium batteries comprising the electrode of organic compounds can offer much higher capacity. Herein, we successfully fabricated an all-solid-state lithium battery based on organic pillar[5]quinone (C35H20O10) cathode and composite polymer electrolyte (CPE). The poly(methacrylate) (PMA)/poly(ethylene glycol) (PEG)-LiClO4-3 wt % SiO2 CPE has an optimum ionic conductivity of 0.26 mS cm(-1) at room temperature. Furthermore, pillar[5]quinine cathode in all-solid-state battery rendered an average operation voltage of ∼2.6 V and a high initial capacity of 418 mAh g(-1) with a stable cyclability (94.7% capacity retention after 50 cycles at 0.2C rate) through the reversible redox reactions of enolate/quinonid carbonyl groups, showing favorable prospect for the device application with high capacity.

Nanostructured Conjugated Ladder Polymers for Stable and Fast Lithium Storage Anodes with High‐Capacity

“…Conjugated carbonyl compounds including quinones (e.g., benzoquinone, naphthoquinone, and anthraquinone), dianhydrides (e.g., pyromellitic dianhydride (PMDA), naphthalenete-tracarboxylic dianhydride (NTCDA), and perylene 3,4,9,10-tetracarboxylic dianhydride (PTCDA)) are considered to be the most promising type of organic electrodes at present due to their unique conjugated structures. [23][24][25][26][27] Nevertheless, they still have dissolution problem and cannot obtain satisfactory cycling performance. On the contrary, the above-mentioned organic materials generally prefer to be applied as cathodes rather than anodes owing to their relatively high redox potentials (typically 1.5-4.0 V vs Li + /Li).…”

Carbonate-linked poly(ethylene oxide) polymer electrolytes towards high performance solid state lithium batteries

“…To develop dry solid polymer electrolytes with high ionic conductivity and interfacial stability, many strategies, such as synthesizing PEO copolymers [11][12][13][14][15][16], tailoring blend polymers [17], preparing branched PEO polymers [18][19][20] or cross-linked PEO polymers [21][22][23] and compositing ceramic fillers [8,[24][25][26][27][28][29][30][31][32] have been extensively studied [33]. A self-doped solid block copolymer electrolyte was synthesized combining a single-ion poly(lithium methacrylate-co-oligoethylene glycol methacrylate) (P(MALi-co-OEGMA)) and a structuring polystyrene block (PS).…”

Advancing Electrolytes Towards Stable Organic Batteries

“…A polymer electrolyte-based lithiumquinone battery operating at room temperature was reported by Zhu et al The composite electrolyte consisted of a PMA/PEG polymer blend, SiO2 (710 nm, 3 wt%) filler, and LiClO4 exhibited a maximum ionic conductivity of 0.26 mS·cm 1 at room temperature (Figure 6a). [5] The adequate conductivity allowed the cell to achieve high material utilization (92%) without bringing the electrolyte beyond melting temperature, although the [5] utilization decreased considerably with the increase of current density (Figure 6b). The cell retained 95% of its initial capacity after 50 cycles (Figure 6c).…”

“…[3] Batteries based on organic electrodes deliver some of the highest specific energies currently known, rivaling other intensively researched technologies based on high-voltage intercalation compounds and even sulfur. [4,5] Despite these benefits, organic batteries have hurdles to overcome before practical application can be realized, among which the compromise between power and effective energy density and that between cycle life and specific energy are particularly noteworthy. This minireview deals with the latter: the cycle life of organic batteries is typically short and mainly attributable to the dissolution of organic active materials to the electrolyte.…”