Abstract Radical polymers are aliphatic or nonconjugated bearing organic robust radicals as pendant groups per repeating unit. A large population of the radical redox sites allows efficient gradient‐driven electron transport through polymer layer by outer‐sphere self‐exchange reactions in electrolyte solutions. The emerging a new class electroactive materials useful for various kinds wet‐type energy storage, transport, and conversion devices. Electric‐field‐driven charge hopping between...

A n-type and redox-active radical polymer bearing galvinoxyl radicals, poly(galvinoxylstyrene), is utilized as an anode-active material, which enabled, for the first time, fabrication of a totally organic polymer- based rechargeable battery in conjunction with p-type polymer. This was characterized by its remarkably high power rate capability. Detailed facts importance to specialist readers are published "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset....

Abstract The electrochemical redox reactions of organic polymers bearing robust unpaired electrons were investigated to determine the applicability these rechargeable batteries. Such an “organic radical battery” would be environmentally friendly and have high-power characteristics. This highlight review describes performance a battery using nitroxyl polymer as cathode active material. electron-transfer mechanism recent developments that should lead practical application are also described.

The p- and n-type bipolar redox-active radical polymer with a nitronylnitroxyl group, poly(nitronylnitroxylstyrene), expands its utilization as cathode- or anode-active material in organic polymer-based rechargeable devices two unprecedented configurations: poleless battery "rocking-chair type" battery. These batteries exhibit remarkably high power rate capability (chargeable within 20 s) cycle performance.

Carbon nanoparticles modified with a polypyrrole (PPy) film, impregnated solution of cobalt salt, and heat-treated under an inert atmosphere at 600−700 °C are good electrocatalyst for the four-electron reduction O2.

A layer of poly(2-vinylanthraquinone) on current collectors underwent reversible electrode reaction at -0.82 V vs Ag/AgCl in an aqueous electrolyte. repeatable charging/discharging cycles with a redox capacity comparable to the formula weight-based theoretical density negative potential suggested that all anthraquinone pendants was redox-active, electroneutralization by electrolyte cation accomplished throughout polymer layer, and stayed collector without exfoliation or dissolution into...

Redox polymer layers with 2,2,6,6-tetramethylpiperidin-1-oxyl-4-yl (TEMPO) groups showed nernstian adsorbate-like electrochemical behaviors up to submicrometer thicknesses, based on a fast charge propagation within the bulk layer and persistency in electrolyte solutions.

Abstract The electron-transfer rate constants of nitroxide derivatives, 4-(N-t-butyl-N-oxylamino)-t-butylbenzene, 4-(N-t-butyl-N-oxylamino)methoxybenzene, and 2,2,6,6-tetramethylpiperidinyl-N-oxyl, were investigated by electrochemical methods, which demonstrated that these radicals can potentially be used as a high power-rate electrode-active material due to their fast process.

A film of poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl vinylether) coated on a current collector displayed rapid and reversible electrochemical response in aqueous electrolytes, allowed an ultrafast full charging 3 mC cm(-2) as short seconds by virtue the combination hydrophilic radical polymer electrolyte possessing high electrical conductivity.

A nonvolatile, bistable, and rewritable organic memory device based on radical polymers was prepared tested. The excellent performance of a battery-inspired architecture with configuration p- n-type charge-transporting sandwiching dielectric layer characterized. ON−OFF ratio more than 4 orders magnitude, retention endurance cycles 104 103, respectively, were accomplished.

Poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl acrylamide) was designed and synthesized as an electrode-active polymer for organic rechargeable device containing aqueous electrolyte. The demonstrated a 1.2 V output voltage, exceeded 2000 charging–discharging cycles, had high charging rate performance within 1 min.

In search of polymer backbones to bind organic radical pendant groups as redox centers for high-density charge storage application, polyether was employed a flexible chain with low glass transition temperature and affinity electrolyte solutions. Cyclic ethers bearing nitroxide radicals were synthesized polymerized via ring-opening polymerization utilizing various initiators. Polyethers robust substituents such 2,2,6,6-tetramethylpiperidin-1-oxyl-4-yl...

Charge transport processes in nonconjugated redox-active polymers with electrolytes were studied using a diffusion-cooperative model. For the first time, we quantitatively rationalized that limited Brownian motion of redox centers bound to resulted 103–4-fold decline bimolecular and heterogeneous charge transfer rate constants, which had been unexplained for half century. As next-generation design, supramolecular system high physical mobility was proposed achieve constant as free solution...

To maximize the theoretical redox capacity of polymers containing cyclic nitroxides as redox-active pendant groups for high-density charge storage application, a compact five-membered ring with smallest equivalent weight among robust was directly bound to poly(ethylene oxide) chain. 2,2,5,5-Tetramethyl-3-oxiranyl-3-pyrrolin-1-oxyl synthesized and polymerized via anionic coordinated ring-opening polymerization utilizing diethyl zinc/H2O an initiator. The unpaired electron in monomer survived...

A highly cross-linked polyviologen hydrogel, poly(tripyridiniomesitylene) (PTPM), has been designed as an anode-active material. It displays a reversible two-electron redox capability at -0.4 and -0.8 V vs Ag/AgCl in aqueous electrolyte. The PTPM layer coated on current collector by electropolymerization via 4-cyanopyridinium electro-coupling reaction demonstrates rapid charging-discharging with capacity comparable to that obtainable using the formula weight-based theoretical density,...

Abstract Facile charge transport by a hydrophilic organic radical‐substituted polymer and the 3D current collection self‐assembled mesh of single‐walled carbon nanotube bundles lead to operation an ultrahigh‐output rechargeable electrode. Exceptionally large density beyond 1 A cm −2 high areal capacity around 3 mAh are achieved, which 10 1−2 times larger than those previously reported so‐called “ultrafast electrodes.” sub‐millimeter‐thick, flexible, highly safe redox polymer‐based device...

It has long remained challenging to predict the properties of complex chemical systems, such as polymer-based materials and their composites. We have constructed largest database lithium-conducting solid polymer electrolytes (104 entries) employed a transfer-learned graph neural network accurately conductivity (mean absolute error less than 1 on logarithmic scale). The bias-free prediction by helped us find superionic conductors composed charge-transfer complexes aromatic polymers (ionic...

Abstract Developing transparent and highly refractive environmentally friendly polymers has not been realized yet toward sustainable optoelectronics. This work describes poly(thiourea)s ( PTU s) design following a new “polarizable group synergy” concept, combining polarizable hydrogen bonding groups aromatic‐based spacers to form densely packed high‐refractive‐index polymer networks. Specifically, PTUs containing m‐ p ‐phenylene exhibit an easy synthesis, high thermostability T g = 159 °C),...

The polymerization of 2,3,5,6-tetraphenylhydroquinone (or 2,2',3,3',5,5'-hexaphenyl-4,4'-dihydroxybiphenyl) with α,ω-tetrahydroperfluoroalkanediol and decafluorobiphenyl was carried out to synthesize a series copolymers III (Mw = 49 100−80 900). are composed arylene ether (10−30 mol %) fluorinated alkane (90−70 moieties. reaction chlorosulfonic acid gave sulfonated polymers IV, which soluble in polar organic solvents form flexible transparent films by casting from solution. IV have glass...

Abstract A hydrophilic poly(vinyl ether)‐backbone polymer bearing a pendant TEMPO radical, poly(2,2,6,6‐tetramethylpiperidinyloxy‐4‐yl vinyl ether) (PTVE), was designed as cathode‐active material, which displays reversible one‐electron redox capability, even in an aqueous electrolyte. The PTVE layer coated on current collector demonstrated rapid charging‐discharging rate based the combination of redox‐active nitroxide radicals built into and electrolyte that possessed high electrical...

A transparent nanocomposite of a radical polymer, the poly(2,2,6,6-tetramethylpiperidine-1-oxy-4-yl methacrylate) (PTMA), and single-walled carbon nanotubes (SWNTs) display reversible charging discharging, allowing for full discharging in seconds. This is ascribed to electrochemical reaction pendant group PTMA aided by both wrapping at molecular level SWNT network electrical conduction.