Patent classifications
H01M4/0478
HONEYCOMB TYPE LITHIUM ION BATTERY
Provided is a honeycomb type lithium ion battery that makes it possible to suppress a short circuit. The honeycomb type lithium ion battery has an anode, a cathode, and a separator layer, wherein the anode has a plurality of through holes extending in one direction, the separator layer has Li ion permeability, and physically isolates the anode and the cathode from each other, at least inner walls of the through holes being covered with the separator layer, the cathode is disposed at least inside the through holes via the separator layer, the separator layer has a first layer with which the inner walls of the through holes are covered, and a second layer disposed between the first layer and the cathode, and the solubility of a binder contained in the first layer is lower than that contained in the second layer.
Semi-solid electrode cell having a porous current collector and methods of manufacture
An electrochemical cell includes an anode, a semi-solid cathode, and a separator disposed therebetween. The semi-solid cathode includes a porous current collector and a suspension of an active material and a conductive material disposed in a non-aqueous liquid electrolyte. The porous current collector is at least partially disposed within the suspension such that the suspension substantially encapsulates the porous current collector.
METHOD FOR PRODUCING LITHIUM ION CELL AND LITHIUM ION CELL
Provided is a method for producing a lithium ion cell having an outer container composed of a resin molded article, and the method for producing a lithium ion cell includes a current collector forming process of forming, on the inner side of an outer container, each of a first electrode current collector and a second electrode current collector composed of an electrically conductive polymer composition by using a molding die.
Stationary semi-solid battery module and method of manufacture
A method of manufacturing an electrochemical cell includes transferring an anode semi-solid suspension to an anode compartment defined at least in part by an anode current collector and an separator spaced apart from the anode collector. The method also includes transferring a cathode semi-solid suspension to a cathode compartment defined at least in part by a cathode current collector and the separator spaced apart from the cathode collector. The transferring of the anode semi-solid suspension to the anode compartment and the cathode semi-solid to the cathode compartment is such that a difference between a minimum distance and a maximum distance between the anode current collector and the separator is maintained within a predetermined tolerance. The method includes sealing the anode compartment and the cathode compartment.
ACTIVE MATERIALS USEFUL IN BALANCING POWER AND ENERGY DENSITY OF A BATTERY ASSEMBLY
The present disclosure relates to battery plates which are useful in optimizing the power and energy density of a batter assembly by having discrete active materials. The present disclosure relates to a battery plate having: a) a substrate having a first surface opposing a second surface; b) one or more active materials disposed on the first surface, second surface, or both the first surface and the second surface of the substrate; and wherein the one or more active materials include two or more discrete active material regions.
Lead-acid battery
A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution, in which the positive electrode plate includes a positive current collector and a positive electrode material, the negative electrode plate includes a negative current collector and a negative electrode material, the positive current collector contains Sn in an amount of 0.95% by mass or more, the negative electrode material contains a polymer compound, and the polymer compound has a peak in a range of 3.2 ppm or more and 3.8 ppm or less in a chemical shift of .sup.1H-NMR spectrum, or the polymer compound contains a repeating structure of oxy C.sub.2-4 alkylene units.
STATIONARY SEMI-SOLID BATTERY MODULE AND METHOD OF MANUFACTURE
A method of manufacturing an electrochemical cell includes transferring an anode semi-solid suspension to an anode compartment defined at least in part by an anode current collector and an separator spaced apart from the anode collector. The method also includes transferring a cathode semi-solid suspension to a cathode compartment defined at least in part by a cathode current collector and the separator spaced apart from the cathode collector. The transferring of the anode semi-solid suspension to the anode compartment and the cathode semi-solid to the cathode compartment is such that a difference between a minimum distance and a maximum distance between the anode current collector and the separator is maintained within a predetermined tolerance. The method includes sealing the anode compartment and the cathode compartment.
LEAD-ACID BATTERY
A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution, in which the positive electrode plate includes a positive current collector and a positive electrode material, the negative electrode plate includes a negative current collector and a negative electrode material, the positive current collector contains Sn in an amount of 0.95% by mass or more, the negative electrode material contains a polymer compound, and the polymer compound has a peak in a range of 3.2 ppm or more and 3.8 ppm or less in a chemical shift of .sup.1H-NMR spectrum, or the polymer compound contains a repeating structure of oxy C.sub.2-4 alkylene units.
Method for producing carbonaceous material for negative electrode of non-aqueous electrolyte secondary battery and production apparatus thereof
There are provided a method capable of producing a large amount of a carbonaceous material for a negative electrode of a non-aqueous electrolyte secondary battery from a carbon precursor impregnated with an alkali metal element or an alkali metal compound, and an apparatus for performing such production. The method for producing a carbonaceous material for a negative electrode of a non-aqueous electrolyte secondary battery includes a heat treatment step of feeding a carbon precursor containing an elemental alkali metal and/or an alkali metal compound, heating the carbon precursor in a temperature range from 1000° C. to 1500° C. in a non-oxidizing gas atmosphere to produce a carbonaceous material, and discharging the carbonaceous material; and an exhaust gas treatment step of contacting a non-oxidizing exhaust gas containing a gas and a flying carbonaceous matter evolved in the heat treatment step with water or an aqueous solution to treat the exhaust gas.
METHOD FOR PRODUCING CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODE OF NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND PRODUCTION APPARATUS THEREOF
There are provided a method capable of producing a large amount of a carbonaceous material for a negative electrode of a non-aqueous electrolyte secondary battery from a carbon precursor impregnated with an alkali metal element or an alkali metal compound, and an apparatus for performing such production.
The method for producing a carbonaceous material for a negative electrode of a non-aqueous electrolyte secondary battery according to the present invention includes a heat treatment step of feeding a carbon precursor containing an elemental alkali metal and/or an alkali metal compound, heating the carbon precursor in a temperature range from 1000° C. to 1500° C. in a non-oxidizing gas atmosphere to produce a carbonaceous material, and discharging the carbonaceous material; and an exhaust gas treatment step of contacting a non-oxidizing exhaust gas containing a gas and a flying carbonaceous matter evolved in the heat treatment step with water or an aqueous solution to treat the exhaust gas.