摘要:
Disclosed is a secondary power source and a manufacturing method thereof. The secondary power source includes a unit cell formed by sequentially laminating a first electrode, a separation film, and a second electrode, wherein the first electrode is formed by forming a first electrode material, into which lithium ions can be irreversibly occluded, on a first conductive sheet, and the first electrode is laminated in the unit cell after lithium ions are occluded into the first electrode material by using a metal that can supply lithium ions.
摘要:
Provided are a method of manufacturing an electrode for a secondary power source, and a secondary power source. The method includes forming an electrode active material on a conductive sheet, forming a Li thin film layer by depositing lithium (Li) on the electrode active material, doping the electrode active material with the deposited Li, and controlling a doping level by monitoring the doping amount of Li. Accordingly, a cathode is doped with Li ions before a cell is assembled, thereby simplifying the manufacturing process, enhancing the doping rate of Li ions, and making the doping amount even.
摘要:
There are provided a device for fabricating an electrode by a roll-to-roll process and a method for fabricating an electrode. The device for fabricating an electrode includes an unwinding roll and a winding roll travelling an electrode material; a film forming roll disposed between the unwinding roll and the winding roll allowing the electrode material to travel along a cylindrical surface of the film forming roll and having a cooling unit cooling the electrode material; and an evaporation unit receiving a lithium source and mounted for the received lithium source to form a thin film in the electrode material positioned on the film forming roll. Thereby, the lithium is deposited in a vacuum atmosphere such that the process is simple and the deposition rate and the deposition uniformity of lithium can be improved.
摘要:
The present invention relates to a method of location management on the road using RFID series. In particular, the present invention provides RFID series, where a number of RFID tags are concurrently installed without the need of installing RFID tags one by one and ID of each RFID tag is automatically computed, and therefore work can be completed with a little time and workforce without confusion even where a number of RFID tags are required in order to constitute an RFID system, and a method of location management on the road to specifically grasp the location where an optional thing on the road (e.g. a car) stops or moves using the RFID series.
摘要:
The present invention relates to a method for constructing location management system using RFID series. In particular, the present invention provides RFID series to complete work with a little time and workforce without confusion by concurrently installing a number of RFID tags, even where a number of RFID tags are required in order to constitute an RFID system, and a method for constructing a system to effectively manage the location of an objective space using RFID series, wherein additional drawings (or computerized drawings) for an objective space are nor required even where RFID tags are attached over a considerably wide space, but rather drawings for location management system of an objective space can be produce by attaching RFID tags.
摘要:
Disclosed herein is a sheet-shaped safety kit that is attached to opposite major surfaces of an electrode assembly for secondary batteries. The safety kit includes a group of metal sheets electrically connected to a cathode terminal of the electrode assembly, another group of metal sheets electrically connected to a cathode terminal of the electrode assembly, and an insulation sheet disposed between the two metal sheet groups. The metal sheets of one of the metal sheet groups are interconnected with each other at lower ends of the metal sheets, the lower-end interconnection part interconnecting the lower ends of the metal sheets has a width less than that of the metal sheets, and lower-end corners of the interconnected metal sheets are larger than lower-end corners of the metal sheets that are not interconnected with each other.
摘要:
There is provided a super capacitor employing a novel hybrid system. The super capacitor includes an anode comprising a transition metal oxide, a cathode comprising a carbide pre-doped with Li ions, a separator disposed between the anode and the cathode to separate the anode and the cathode from each other, and an electrolyte contacting the anode and the cathode.
摘要:
There is provided a polarizable electrode for a capacitor and an electric double layer capacitor having the same. The polarizable electrode is a gel-state mixture including carbon nanotubes (CNTs) forming a network structure, porous carbon materials dispersed between the CNTs, and ionic liquids allowing the CNTs and the porous carbon materials to be dispersed. The polarizable electrode secures an electrical connection path between an electrode and a collector and prevents separation between the porous carbon materials and the ionic liquids using the network structure formed by the CNTs. Accordingly, the electric double layer capacitor having the polarizable electrode has low contact resistance between the electrode and the collector and has low possibility of polarization occurrence between the electrode and an electrolyte, resulting in high capacitance and high energy efficiency due to low equivalent series resistance.
摘要:
Disclosed is a method for checking and managing the history of movement of equipment, which operates in a target space divided into at least two areas, by using a number of RFID tags. The target space (e.g. warehouse) is divided into at least two areas, and RFID tags are installed on the boundary line between the areas at a short interval. When equipment (e.g. forklift) provided with a RFID reader moves across the boundary line and recognizes the RFID tags installed on the boundary line, the computer system recognizes that the equipment has moved from an area to another and displays the result of recognition to the outside so that the operator can finally recognize in which area of the target space the equipment or the object (cargo) carried by it exists in real time.
摘要:
There are provided an electrode for a capacitor and an electric double layer capacitor having the same. The electrode for a capacitor may include: activated carbon; and 25 to 75 parts by weight of carbon aerogel per 100 parts by weight of the activated carbon. The electrode according to an aspect of the invention has excellent bonding strength between electrode materials and is free of defects such as aggregation and cracking. An electric double layer capacitor having this electrode has high capacitance and low internal resistance.