An electropositive metal electrode coated by an ion-selective conformable polymer provides the negative electrode and the solid-state electrolyte for a rechargeable bi-electrolyte displacement battery that further includes a molten salt electrolyte having a melting temperature below 140° C. interposed between the conformable polymer coating and a positive electrode. Suitable electropositive metals include lithium, sodium, magnesium, and aluminum and the molten salt incorporates a soluble salt of the metal of the negative electrode. Positive electrodes may incorporate metals including Fe, Ni, Bi, Pb, Zn, Sn, and Cu, and thanks to the ion-selective conformable solid-state electrolyte the molten salt is able to incorporate a soluble salt of the metal of the positive electrode. The conformable polymer-coated electropositive metal electrode may be manufactured by a process involving electroplating electropositive metal through a conformable polymer-coated conductive substrate. The conformable polymer-coated conductive substrate may be prepared by coating the conductive substrate in a conformable polymer solution followed by evaporating the solvent. Alternatively, an electropositive metal electrode may be coated directly with the conformable polymer.

An electrolyte composition comprising (i) a block copolymer, (ii) an organic electrolyte (e.g. an ionic liquid), and (iii) a lithium salt, wherein the block copolymer comprises a non-ionic block and an ionic block, the non-ionic block comprising polymerised residues of hydrophobic monomers, and the ionic block comprising polymerised monomer residues having covalently coupled thereto (a) a pendant organic ionic liquid cation, the pendant organic ionic liquid cation having a counter anion, (b) a pendant anionic moiety, the pendant anionic moiety having a counter cation, or (c) a combination thereof, and the electrolyte composition has at least two glass transition temperature (Tg) values.

The present invention provides a composition for a gel polymer electrolyte, the composition including: a first oligomer represented by Formula 1; a second oligomer including a first repeating unit which is represented by Formula 2a and derived from a styrene monomer; a polymerization initiator; a lithium salt; and a non-aqueous solvent, a gel polymer electrolyte prepared using the same, and a lithium secondary battery.

The present technology relates to gel electrolytes for using in lithium-ion electrochemical cells and methods of forming the same. For example, the method may include adding one or more gelation reagents to an electrochemical cell including one or more liquid electrolyte precursors. The one or more gelation reagents include one or more initiators and one or more crosslinking agents. Each of the one or more initiators may be one of a thermal initiator and an actinic/electron beam initiator. Each of the one or more crosslinking agents may be one of a tridentate alkane and a tetradentate alkane having one or more substitutes including a terminal group represented by: ##STR00001##

A solid state high voltage battery includes a cathode; an anode; a catholyte solution in contact with the cathode; an anolyte solution in contact with the anode, and a separator disposed between the cathode and the anode. At least one of the catholyte or the anolyte is gelled, and at least one of the catholyte or the anolyte comprises an organic electrolyte, an ionic liquid electrolyte, or water in salt electrolyte.

Battery systems and methods for accelerating ion diffusion in polymer electrolyte materials. The application of oscillating electric fields is used to improve the ionic transport properties of polymer electrolytes by reducing the apparent hopping barrier of the lithium ions within the electrolyte material. Polymer-electrolyte-based battery cells exhibiting enhanced ion mobility due to the application of such oscillating electric fields.

The present invention relates to a composite material comprising a porous solid matrix having interconnected channels, said matrix comprising sulfonate groups on at least a part of the surface of said channels, wherein a sulfonate group is in ionic interaction with a quaternary ammonium of a polymerizable molecule. The present invention also relates to a method for preparing such a composite material and applications thereof.

A polymer electrolyte membrane, an electrode structure and an electrochemical device including the same, and a method of manufacturing the polymer electrode membrane are disclosed. The polymer electrolyte membrane includes a copolymer of a cross-linkable precursor comprising a urethane group-containing polyfunctional acrylic monomer and a polyfunctional block copolymer; and a lithium salt, thereby having high elasticity and high strength characteristics, so that dendrites can be stably protected and damage to a protective film can be prevented when the dendrites are grown on the surface of a lithium metal electrode during the charging and discharging of a battery, and thus the performance of the battery can be improved. The polymer electrolyte membrane can be directly coated on a free-standing type film or a lithium metal electrode and then molded into a form of protective film, and can thus be used in an electrochemical device such as a high-density and high-energy lithium metal battery.

Provided is encapsulated electroactive materials for use in rechargeable aqueous zinc cells, batteries, systems, and associated methods. A core-shell composite particle includes a core of electrochemically active material, and a shell of a polyelectrolyte matrix, substantially insoluble in water, yet allowing the transport of zinc cations to and from the electrochemically active core. A method for preparing the core-shell composite electrochemically active particle includes mechanically dispersing the electrochemically active material particles in association with the polyelectrolyte solution, insolubilizing the polyelectrolyte in the presence of the dispersed electrochemically active material particles, washing the encapsulated particles particle with water, and drying the washed encapsulated particles

The present disclosure relates to a single-ion solid electrolyte and its method of preparation. More particularly, the present disclosure relates to a single-ion conducting polymer solid electrolyte containing a network polymer, inorganic nanoparticles, and an electrolyte, wherein the network polymer contains a structural unit containing a cationic group, and its method of preparation.