A method of producing a non-aqueous electrolyte secondary battery includes at least the following (), (), and (): () preparing an elementary battery including at least a positive electrode, a negative electrode, a gel film, and an electrolyte solution; () carrying out initial charge of the elementary battery; and () after the initial charge, processing the elementary battery to produce a finished-product battery. The negative electrode includes at least a negative electrode active material. The gel film is formed on a surface of the negative electrode. The gel film contains a polymer material and the electrolyte solution. The gel film is thixotropic. The initial charge is carried out while the gel film is under a first pressure. The processing is carried out in such a way that the gel film is put under a second pressure. The second pressure is higher than the first pressure.

The invention provides a metallopolymer coordination network comprising one or more coinage or similar metals and a glyme or glyme-equivalent. The composition has an amorphous polymer network that is significantly stronger than previously reported supramolecular hydrogels synthesized without glyme. Glyme chain length and water content strongly influence the mechanical, electronic, and optical behavior of the network.

Solid-state lithium ion electrolytes of lithium fluoride based composites are provided which contain an anionic framework capable of conducting lithium ions. Composites of specific formulae are provided and methods to alter the composite materials with inclusion of aliovalent ions shown. Lithium batteries containing the composite lithium ion electrolytes are provided. Electrodes containing the lithium fluoride based composites are also provided.

A solid electrolyte capable of securing grain boundary resistance even when sintering is performed at a relatively low temperature and a lithium ion battery using the solid electrolyte are provided. The solid electrolyte includes a first electrolyte which contains a lithium composite metal compound containing one kind of first metal element selected from group 13 elements in period 3 or higher, and a second electrolyte which contains Li and at least two kinds of second metal elements selected from group 5 elements in period 5 or higher or group 15 elements in period 5 or higher.

Embodiments described herein relate generally to electrochemical cells including a selectively permeable membrane and systems and methods for manufacturing the same. In some embodiments, the selectively permeable membrane can include a solid-state electrolyte material. In some embodiments, electrochemical cells can include a cathode disposed on a cathode current collector, an anode disposed on an anode current collector, and the selectively permeable membrane disposed therebetween. In some embodiments, the cathode and/or anode can include a slurry of an active material and a conductive material in a liquid electrolyte. In some embodiments, a catholyte can be different from an anolyte. In some embodiments, the catholyte can be optimized to improve the redox electrochemistry of the cathode and the anolyte can be optimized to improve the redox electrochemistry of the anode. In some embodiments, the selectively permeable membrane can be configured to isolate the catholyte from the anolyte.

A composite solid electrolyte with excellent formability and chemical stability and high lithium ion conductivity. The composite solid electrolyte may comprise an oxide-based solid electrolyte and a sulfide-based solid electrolyte, wherein the oxide-based solid electrolyte is (Li.sub.7-3Y-Z, Al.sub.Y)(La.sub.3)(Zr.sub.2-Z, M.sub.Z)O.sub.12 (where M is at least one element selected from the group consisting of Nb and Ta; Y is a number in a range of 0Y<0.22; and Z is a number in a range of 0Z2), and wherein the sulfide-based solid electrolyte is VLiX-(1V)((1W)Li.sub.2S-WP.sub.2S.sub.5) (where X is a halogen element; V is a number in a range of 0<V<1; and W is a number in a range of 0.125W0.30).

A secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode, and an electrolyte layer, and the electrolyte layer includes an electrolytic solution and a copolymer containing vinylidene fluoride, hexafluoropropylene, and a hetero-unsaturated compound.

A LiSnOS compound, a manufacturing method therefor and use thereof as an electrolyte material of Li-ion batteries, and a LiSnOS hybrid electrolyte are provided. The LiSnOS compound of the present invention is laminated SnOS embedded with lithium ions. The LiSnOS compound is represented by the formula Li.sub.3x[Li.sub.xSn.sub.1x(O,S).sub.2], where x>0. The manufacturing method for a LiSnOS compound includes the following steps of: (S1000) providing a SnOS compound; (S2000) adding a lithium source into the SnOS compound to form a LiSnOS precursor; and (S3000) performing calcination on the LiSnOS precursor in a vulcanization condition.

An ionic liquid grafted conductive membrane for fuel cells is disclosed. In accordance with aspects, a fuel cell includes a membrane having: ionic liquid monomers physically covalently bonded to a fluorocarbon polymer substrate, and a solid-state proton conductive network configured to conduct protons above 100 C.

A solid electrolyte capable of securing grain boundary resistance even when sintering is performed at a relatively low temperature and a lithium ion battery using the solid electrolyte are provided. The solid electrolyte includes a first electrolyte which contains a lithium composite metal compound containing one kind of first metal element selected from group 13 elements in period 3 or higher, and a second electrolyte which contains Li and at least two kinds of second metal elements selected from group 5 elements in period 5 or higher or group 15 elements in period 5 or higher.