Patent classifications
H01M4/139
METHOD FOR MANUFACTURING OR RECYCLING MEMBER FOR ELECTROCHEMICAL DEVICE, METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE, MEMBER FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE
A purpose of the present invention is to provide a method for manufacturing, etc., a member for an electrochemical device in which the problem of irreversible change in the composition of the electrochemical device due to solvent depletion, moisture absorption, etc., during manufacturing of the electrochemical devices is unlikely to occur. This method for manufacturing a member for an electrochemical device includes performing at least one shaping operation described in the present specification on a shaping material composition that comprises: at least one filler (F); a plasticizer (P-S), being water, an ionic liquid, or a mixture thereof; and a polymer (P1), the shaping material composition being substantially free of an organic solvent and having plasticity and self-supporting property.
COATED ELECTRODE WITH POLYMERIC BINDERS FOR LITHIUM ION BATTERY
Disclosed is a method for producing a battery electrode using a granulated polymeric binder composition where the binder composition comprises agglomerated particles wherein greater than 95% by weight of agglomerated particles are 400 um or greater but less than 2.5 mm and a bulk density of greater than 0.4 g/cc.
ELECTRODE DRYING DEVICE AND ELECTRODE DRYING METHOD
The present invention relates to an electrode drying apparatus and an electrode drying method, and the electrode drying apparatus includes: an oven configured to provide a space in which the electrode is dried and to include a hot air nozzle or an infrared heater; a color coordinate measuring unit configured to be positioned at an outlet of the oven and measure a color coordinate value of an electrode active material layer with respect to the dried electrode; and a controller configured to analyze a drying result of the electrode from the color coordinate value, determine whether the electrode is defective in drying, and control a drying condition of the electrode.
SLURRY COMPOSITION FOR POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME
The present disclosure relates to a slurry composition for a positive electrode for a lithium secondary battery, and a positive electrode and a lithium secondary battery including the same, and more particularly, when manufacturing the positive electrode for the lithium secondary battery including slurry coating process, it is possible to increase the processability during the manufacture of the positive electrode for the lithium secondary battery, by manufacturing the positive electrode using a slurry composition for positive electrode with thixotropy that can secure flowability to an extent that can respond flexibly to changes in the coating speed of the slurry.
Anode Mixture for Secondary Battery, Anode and Secondary Battery Including the Same
The present disclosure relates to an anode mixture for a secondary battery, an anode and a secondary battery including the same. Specifically, in one embodiment of the present disclosure, there is provided an anode mixture for a secondary battery including a binder composition, which is a mixture of an AAM/AA/AN copolymer and HASE, in a specific content range.
ANODE FOR A MAGESIUM BATTERY AND METHOD FOR THE PRODUCTION THEREOF
An anode for a magnesium battery, including a core element made from a core material, wherein a magnesium coating is at least partially arranged on a surface of the core element, a protective layer being arranged on a surface of the magnesium coating. A method for producing such an anode and a magnesium battery having at least one such anode are also provided.
METHOD AND DEVICE FOR CUTTING ELECTRODE FOILS
A method for cutting electrode foils (1) by means of a particle stream (2) is proposed. A cutting device (4) for cutting electrode foils (1) that are intended for use in a battery cell is also specified which comprises at least one nozzle (5) with an outlet (6), one cutting tool (7), one vibration device (8) for exciting at least the cutting tool (7) to vibration (14), one particle feed line (9) for supplying at least particles (13), and one gas feed line (10) for supplying a first gas stream (12), wherein the particles (13) and the first gas stream (12) can be mixed in the cutting device (4) to form a particle stream (2) and fed via the nozzle (5) to the outlet (6), wherein the cutting tool (7) and the outlet (6) can be arranged above the electrode foil (1) with separation (11) from a surface (3) of the electrode foil (1), and wherein the electrode foil (1) can be cut at least as a result of the particle stream (2) and the vibrations (14) of the cutting tool (7).
METHOD AND DEVICE FOR CUTTING ELECTRODE FOILS
A method for cutting electrode foils and a device for cutting electrode foils that are intended for use in a battery cell are proposed. The cutting device
comprises a cutting tool, a vibration device for exciting at least the cutting tool to vibration, and a particle feed line for feeding at least particles. The cutting tool can be arranged above the electrode foil with a separation from a surface of the electrode foil, and the electrode foil can be cut at least as a result of the vibrations of the cutting tool that are transmitted to at least one particle.
DEVICE FOR MANUFACTURING ELECTRODE PLATE AND METHOD FOR MANUFACTURING ELECTRODE PLATE
A manufacturing apparatus for an electrode plate includes: a conveyance line of the electrode plate having an applied portion in which an electrode active material is applied to a surface of a base material and a non-applied portion in which the electrode active material is not applied to the surface of the base material; a compression roll provided in the conveyance line and compressing the applied portion; and a tension reducing mechanism provided in at least one of an upstream section ending at the compression roll or a downstream section starting at the compression roll in the conveyance line and reducing a tension applied to the electrode plate.
DEVICE FOR MANUFACTURING ELECTRODE PLATE AND METHOD FOR MANUFACTURING ELECTRODE PLATE
A manufacturing apparatus for an electrode plate includes: a conveyance line of the electrode plate having an applied portion in which an electrode active material is applied to a surface of a base material and a non-applied portion in which the electrode active material is not applied to the surface of the base material; a compression roll provided in the conveyance line and compressing the applied portion; and a tension reducing mechanism provided in at least one of an upstream section ending at the compression roll or a downstream section starting at the compression roll in the conveyance line and reducing a tension applied to the electrode plate.