3results about How to "Overcome deformation" patented technology

The present invention belongs to the technical field of new tape materials, and provides an ultra-thin PTFE film anti-adhesive tape, and a preparation method and use thereof. The preparation method of the ultra-thin PTFE film anti-adhesive tape provided by the present invention comprises: compounding a backing film on the ultra-thin PTFE film, then performing chemical treatment, coating, compounding a release film, and then removing the backing film. Since the ultra-thin PTFE film is too thin and is very easy to curl and deform, the use of a backing film helps to increase its stiffness to a certain extent, which can effectively improve or solve this problem. The present invention also provides an ultra-thin PTFE film anti-adhesive tape prepared by the above method and its use in PCB substrate and / or FPC circuit protection.

This invention provides a silicon anode sheet and its preparation method. The silicon anode sheet includes: an active material layer containing silicon material, a conductive agent, and a fibrous binder; and a current collector disposed on the upper and lower surfaces of the active material layer, wherein the current collector is made of carbon felt material. According to the silicon anode sheet of this invention, on the one hand, the use of a fibrous binder in the active material layer can form a cross-linked bonding network, thereby effectively improving the flexibility of the electrode sheet and overcoming the deformation and stress problems caused by the volume expansion of the active material; on the other hand, the use of carbon felt material to make the current collector on the silicon anode sheet allows its rigidity to suppress electrode expansion, improve battery life, and its chemical properties to prevent electrolyte corrosion of the current collector, thereby effectively improving the battery's cycle performance.

The electrically-controlled grip dynamometer comprises a U-shaped handle capable of being held and pressed, the opening end of the U-shaped handle is connected with a magnet damping assembly, the magnet damping assembly comprises two magnet dampers, the same poles of the two magnet dampers are oppositely arranged, and at least one magnet damper is controlled by a magnet damping control circuit; the magnet damping control circuit comprises a magnet damping electric control circuit or a magnet damping alternating current circuit; the sensing circuit at least comprises a sensing component and a power supply. The combination of the permanent magnet and the electromagnet or the combination of the electromagnets is realized, the problem that deformation is easy to generate when a spring is used is solved, and the accuracy of the grip dynamometer is improved and the service life is prolonged by adopting the combination; the slide rheostat is suitable for adults and children to specifically adjust the knob resistance value of the slide rheostat to control the magnitude of the magnetic force according to grip strength conditions of different age groups, so that patients of different age groups and different grip strength can be better detected.