Abstract: A polymer electrolyte for a battery cell. The polymer electrolyte includes or substantially consists of a polymaleimide copolymer. The polymaleimide copolymer includes or substantially consists of first polymaleimide repeat units and second polymaleimide repeat units, wherein the first polymaleimide repeat units and the second polymaleimide repeat units are covalently bonded to one another.

Abstract: A polymer electrolyte for a battery cell comprising i) a first polymaleimide polymer comprising first polymaleimide repeat units, wherein the first polymaleimide repeat units are according to R3(Q)?, wherein R3, individually, is a polyether or C(H)h(CxH2x+1)i((CH2)?)j(CH2OC(O)(CH2)?)k, wherein i is between 0 and 2; j and k, individually, are between 0 and 4; h is 4-i-j-k; h+i is between 0 and 2; x is between 1 and 6; L) is between 1 and 10; ? is between 1 and 20; ?, individually, is at least 2; and Q, individually, is according to a particular formula.

Abstract: Olivine-type compounds, their preparation and use in cathode materials for sodium-ion batteries. The olivine-type compounds may be obtained by a direct synthesis embodying a hydrothermal method. The method may include preparing an aqueous mixture including a M-containing compound, a M?-containing compound and a M?-containing compound to obtain a M-M?-M? mixture; adding a P-containing compound to the mixture M-M?-M? mixture to obtain a M-M?-M?-P mixture; adding a Na-containing compound to the M-M?-M?-P mixture to obtain a Na-M-M?-M?-P mixture; and introducing the Na-M-M?-M?-P mixture into an autoclave to perform crystal growth and obtain the compound of general formula NahMiM?jM?kPO4.

Abstract: Solid state electrolytes having ionic compounds derived from sulfonimides have extended delocalization of the anionic charge and high total ionic conductivity. A secondary electrochemical cell or a secondary battery has the solid electrolyte. A vehicle, an electronic device, or an electrical grid comprising has at least one of the secondary electrochemical cell or the secondary battery.

Abstract: A method for obtaining ionic compounds of formula I involves two-steps carried out in a one-pot manner and includes reaction of a N-(sulfinyl)sulfonamide of formula R1SO2N?S?O with a sulphonamide salt of formula R2SO2N(M)m, followed by oxidation of the resulting compound. The method has several advantages compared to previous methods to access sulfonimides, including a short sequence of steps, short reaction time, avoidance of environmentally-unfriendly reagents (including CF3SiMe3), improved atom-economy, milder conditions, as well as the ability to synthesize a broad range of salts.

Abstract: A metal ion capacitor with outstanding power capabilities having a negative electrode based on hard carbon (HC) and a positive electrode based on a combination of activated carbon (AC) and a sacrificial salt selected from the group consisting of squarate, oxalate, ketomalonate and di-ketosuccinate or a combination thereof. The sacrificial salt is added to AC in the positive electrode as a source of metal ions for pre-doping the HC and to efficiently compensate its high irreversible capacity by providing the metal ions necessary for the formation of solid electrolyte interphase (SEI) on the hard carbon, allowing for a 1:1 and superior mass balances between anode and cathode. Advantageously, the extraordinary performance of this approach has been successfully demonstrated not only in lithium ion capacitors (LICs) but also in other metal ion capacitors such as sodium and potassium ion capacitors.

Abstract: The invention concerns ionic compounds in which the anionic load has been delocalized. A compound disclosed by the invention is comprised of an amide or one of its salts, including an anionic portion combined with at least one cationic portion M+m in sufficient numbers to ensure overall electronic neutrality; the compound is further comprised of M as a hydroxonium, a nitrosonium NO+, an ammonium —NH4+, a metallic cation with the valence m, an organic cation with the valence m, or an organometallic cation with the valence m. The anionic portion matches the formula RF—SOx—N?Z, where RF is a perflourinated group, x is 1 or 3, and Z is an electroattractive substituent. The compounds can be used notably for ionic conducting materials, electronic conducting materials, colorants and the catalysis of various chemical reactions.

Abstract: The present technology relates to a polymer comprising at least one ester repeating unit and one ether repeating unit for use in an electrochemical cell, particularly in electrochemical accumulators such as lithium batteries, sodium batteries, potassium batteries and lithium-ion batteries. More specifically, the use of this polymer as a solid polymer electrolyte (SPE), as a matrix for forming gel electrolytes, or as a binder in an electrode material are also contemplated.

Abstract: The present technology relates to an ionic polymer comprising at least one repeating unit comprising the reaction product between at least one compound comprising at least two functional groups and a metal bis(halosulfonyl)imide for use in electrochemical applications, particularly in electrochemical accumulators such as batteries, electrochromic devices and supercapacitors. The present technology also relates to a polymer composition, a solid polymer electrolyte composition, a solid polymer electrolyte, an electrode material comprising said ionic polymer. Their uses in electrochemical cells and electrochemical accumulators as well as their manufacturing processes are also described.

Abstract: A method of preparing an electrochemical electrode which is partially or totally covered with a film that is obtained by spreading an aqueous solution comprising a water-soluble binder over the electrode and subsequently drying same. The production cost of the electrodes thus obtained is reduced and the surface porosity thereof is associated with desirable resistance values.

Abstract: Olivine-type compounds, their preparation and use in cathode materials for sodium-ion batteries. The olivine-type compounds may be obtained by a direct synthesis embodying a hydrothermal method. The method may include preparing an aqueous mixture including a M-containing compound, a M?-containing compound and a M?-containing compound to obtain a M-M?-M? mixture; adding a P-containing compound to the mixture M-M?-M? mixture to obtain a M-M?-M?-P mixture; adding a Na-containing compound to the M-M?-M?-P mixture to obtain a Na-M-M?-M?-P mixture; and introducing the Na-M-M?-M?-P mixture into an autoclave to perform crystal growth and obtain the compound of general formula NahMiM?jM?kPO4.

Abstract: The present technology relates to a sulfur-containing polymer or organic compound for use in a positive electrode material, especially in lithium batteries. More specifically, the use of this sulfur-containing polymer or compound as an active electrode material makes it possible to combine sulfur and an active organic cathode material. The present technology also relates to the use of the sulfur-containing polymer or organic compound as defined herein as a solid polymer electrolyte (SPE) or as an additive for electrolyte, especially in lithium batteries.

Abstract: A solid electrolyte includes a polymer and a lithium salt, a sodium salt or mixtures of these salts. The polymer has at least 50 mol % of recurring units of formula (I). A method is for the preparation of the electrolyte. Energy storage devices can include the electrolyte.

Abstract: This disclosure provides for Olivine-type compounds, their preparation and use in cathode materials for sodium-ion batteries. The olivine-type compounds of the invention are obtained by a direct synthesis embodying a hydrothermal method.

Abstract: A metal ion capacitor with outstanding power capabilities having a negative electrode based on hard carbon (HC) and a positive electrode based on a combination of activated carbon (AC) and a sacrificial salt selected from the group consisting of squarate, oxalate, ketomalonate and di-ketosuccinate or a combination thereof. The sacrificial salt is added to AC in the positive electrode as a source of metal ions for pre-doping the HC and to efficiently compensate its high irreversible capacity by providing the metal ions necessary for the formation of solid electrolyte interphase (SEI) on the hard carbon, allowing for a 1:1 and superior mass balances between anode and cathode. Advantageously, the extraordinary performance of this approach has been successfully demonstrated not only in lithium ion capacitors (LICs) but also in other metal ion capacitors such as sodium and potassium ion capacitors.

Abstract: A solid single-ion conductive polymer comprising a repeat unit of formula (Ia): wherein R1 is H, or C1 to C16 linear or branched alkyl, alkenyl, alkinyl; m is 1 to 5; each M+ is independently selected from Li+, Na+ or K+; and X is selected from CF3, CH3, or F; and the polymer has an average molecular weight of 350.000 to 1.200.000 Da.

Abstract: The present technology relates to a sulfur-containing polymer or organic compound for use in a positive electrode material, especially in lithium batteries. More specifically, the use of this sulfur-containing polymer or compound as an active electrode material makes it possible to combine sulfur and an active organic cathode material. The present technology also relates to the use of the sulfur-containing polymer or organic compound as defined herein as a solid polymer electrolyte (SPE) or as an additive for electrolyte, especially in lithium batteries.

Abstract: A copolymer for constituting a polymer electrolyte for a solid-electrolyte lithium or sodium cell. A polymer electrolyte that is usable in combination with high-voltage cathode active materials and makes it possible to provide solid-electrolyte lithium or sodium cells and/or batteries having a high energy density that is sufficient even for use in electricity-based vehicles, the copolymer encompasses at least two ion-conductive polymers, the copolymer encompassing at least one polymer polymerized by ring-opening polymerization of at least one lactone and/or of at least one lactide and/or of at least one cyclic carbonate and/or of at least one cyclic carbamate and/or of at least one lactam and/or of at least one epoxide, and/or at least one polymer polymerized by radical polymerization of acrylonitrile and/or of at least one acrylonitrile derivative; and encompasses at least one polyacrylate having at least one repeating unit.

Abstract: Polymers used as rolling lubricating agents, to compositions including said polymers, and to alkali metal films including the polymers or compositions on the surface(s) thereof. The use of said polymers and compositions is also described for strip-rolling alkali metals or alloys thereof in order to obtain thin films. Methods for producing said thin films, which are suitable for use in electrochemical cells, are also described. An improved lubricant according to formula I, which, for example, achieves enhanced conductivity, and/or enables the production of electrochemical cells having an improved life span in cycles.

Abstract: The present technology described relates to lithium-based alloy electrode materials used for the production of anode in lithium accumulators and processes for obtaining same. The alloy comprises metallic lithium, a metallic component X1 selected from magnesium and aluminum and a metallic component X2 selected from alkali metals, alkaline earth metals, rare earths, zirconium, copper, silver, bismuth, cobalt, zinc, aluminum, silicon, tin, antimony, cadmium, mercury, lead, manganese, boron, indium, thallium, nickel, germanium, molybdenum and iron. Processes for preparing electrode materials thus obtained and their uses are also described.