8 results about "Conductive coating" patented technology

The invention discloses a tire pressure gauge and air faucet connecting structure which comprises a universal head, a conductive coating film, a first mating piece and an insulating fixing piece; the universal head is arranged on the tail end of the axial direction of the air faucet, and is provided with a second mating piece; the conductive coating film is fixed on an outer shell, and comprises a film body, a tongue piece which extends into the outer shell form the film body and is electrically connected with a transmission circuit in a circuit board, and a guide groove penetrated to the film body; the film body is provided with an inner concave spherical surface and an outer convex spherical surface; the universal head is universally connected with the inner concave spherical surface, and is concentric with the outer convex spherical surface; the first mating piece comprises a limiting piece; the insulating fixing piece is sleeved on the periphery of the air faucet so that the air faucet is fixed with a hub in an insulating way; the two mating pieces are mutually fixed in a matched way through the guide groove; and the signals of the transmission circuit of the tire pressure gauge are transmitted to the space sequentially through the conductive coating film, the first mating piece, the second mating piece, the universal head and the air faucet. The tire pressure gauge and air faucet connecting structure can ensure the high-efficiency and reliable transmission of the signals while ensuring the tire pressure gauge and the air faucet are stably connected and rotate flexibly, and can minimize the economic losses caused by the hitting to the tire pressure gauge.

The invention provides a lithium ion battery positive pole piece, which comprises a positive current collector, a conductive coating layer and an active slurry layer, wherein the conductive coating layer and the active slurry layer are sequentially coated on the positive current collector, and the active slurry layer comprises, by mass, 95% of a LiFePO4 active substance, 2.8% of a conductive agent and 2.2% of a binder; the conductive coating layer comprises the following components in percentage by mass: 10% of a conductive agent, 2% of a binder, 1% of ethanol, 1% of acetone and 86% of deionized water; the binder is polyvinylidene fluoride, the conductive agent is conductive carbon black, and the positive active substance is LiFePO4. The preparation method is simple, the conductivity of the pole piece can be effectively improved, the lithium ion transfer impedance in the battery is obviously reduced, the direct-current internal resistance of the battery is obviously reduced, and the cycling stability of the battery can be improved.