4results about How to "Capacity balance" patented technology

A dual-channel pre-welding machine for square aluminum-cased batteries includes a machine base and, in sequence according to the process flow, a transfer and turning device, a transit and handling device, a single OK battery storage device, an NG battery storage device, two pressing and transferring devices, two pressing devices, two pre-welding transfer devices, a step detection device, a pre-welding device, two resistance measurement transferring devices, two resistance measurement devices, a material unloading and handling device, an NG battery storage pull belt, and a single OK pre-welding battery storage device. It is used for pressing and fitting batteries, measuring the step height of pressed batteries and determining their passability, pre-welding pressed batteries, measuring the resistance value of pre-welded batteries and determining their passability. During the material handling and operation of the batteries, the battery carrier grippers, battery claw grippers, pressing fingers, and transfer clamping plates and blocks provide protection. This dual-channel pre-welding machine for square aluminum-cased batteries is equipped with several dual-set devices, balancing the overall production capacity and meeting requirements.

The invention provides a single cell capacity difference equalization method and device based on a battery pack, relates to the technical field of battery packs, and solves the technical problem that the capacity of single cells is difficult to equalize under irregular charging and discharging of the battery pack in the prior art. The method specifically comprises the following steps: acquiring a first curve and a second curve; the first curve is a charging voltage curve of the first monomer; the second curve is a charging voltage curve of the second monomer; calculating the capacity difference between the first monomer and the second monomer based on the first curve and the second curve; and balancing the energy of the first monomer and the energy of the second monomer based on the capacity difference. The method is used for balancing the energy difference of the battery pack monomers.

The utility model discloses a universal base plate mechanism for a die, which comprises a die body, the die body comprises an upper die and a lower die, a base plate is arranged between the upper die and the lower die, a plurality of equidistant water-oil quick-plug female heads are embedded in the upper surface of the base plate, a plurality of equidistant water-oil quick-plug male heads are embedded in the lower surface of the base plate, and the water-oil quick-plug female heads are connected with the base plate. The water-oil quick plug female head and the water-oil quick plug male head are connected through a water-oil way hose, and four automatic locking positions are arranged at the front end and the rear end of the base plate respectively. After the device is used, a die for a production line project can be flexibly switched between two production lines, the productivity is balanced, the production adaptability of the die is improved, and the risk of abnormal production halt caused by machine tool problems is reduced.

The present application relates to the technical field of waterborne polyurethane materials, and particularly relates to a low VOC waterborne PU foam pad and a preparation method thereof. The foam pad is formed by foaming and curing of a waterborne polyurethane dispersion, and two types of aldehyde-trapping sites are simultaneously introduced into the same porous framework, i.e. an amidoxime group formed by post-conversion of a nitrile group precursor by hydroxylamine, and an aminooxy group obtained by coupling and deprotection of T-BOC-aminooxy-diglycol-amino through a carboxyl anchoring site under an EDC and NHS activation system; and a water-dispersible blocked polyisocyanate crosslinking agent is used to form a crosslinking network by pyrolytic deblocking, so as to achieve rapid capture and durable retention of aldehydes such as formaldehyde and acetaldehyde under water washing and humid heat conditions, and simultaneously help to reduce VOC emission of the material.