905 results about "Active particles" patented technology

The invention relates to preserving the properties of active particles through use of an encapsulant which may be removable. The encapsulant may protect the active particles against premature deactivation. If desired, the encapsulant may be removed to rejuvenate the active particles. Various processes can be implemented to introduce encapsulated particles to embedding substances which may be used in various products.

An endodontic probe is used to perform disinfection procedures on target tissues within root canal passages and tubules. The endodontic probe can include an electromagnetic radiation emitting fiber optic tip having a distal end and a radiation emitting region disposed proximally of the distal end. According to one aspect, the endodontic probe can include a porous structure that encompasses a region of the fiber optic tip excluding the radiation emitting region and that is loaded with biologically-active particles, cleaning particles, biologically-active agents, or cleaning agents for delivery from the porous structure onto the target tissues. Another aspect can include provision of the endodontic probe with an adjustable channel-depth indicator, which encompasses a region of the fiber optic tip besides the radiation emitting region and which is movable in proximal and distal directions along a surface of the fiber optic tip to facilitate the provision of depth-of-insertion information to users of the endodontic probe.

The invention provides a high-power high-capacity lithium ion battery and a preparation method thereof. by changing the structure of electrodes and placement position of current collectors in existing lithium ion battery, an electrode material layer is arranged between two layers of current collectors to form an electrode, and positive and negative current collectors are respectively positioned at two sides of a diaphragm instead of being positioned inside the electrode material layer. According to the structure, the battery electrode layer is close to a reaction area for porous current collector, and there is always a low-internal-resistance area. Thus, the battery can meet requirement of instantaneous high-power operation. Meanwhile, thickness of the electrode layer can be greatly increased, and the requirement of a battery on large capacity can be met. Therefore, the contradiction that the increase of battery capacity leads to instantaneous power coastdown of a battery is effectively solved. As the porous current collector is arranged between the electrode layer and the diaphragm, direct contact between the electrode material layer and the diaphragm is avoided, the internal short-circuited risk caused by positive and negative active particles and a nano-conducting layer entering the diaphragm is reduced, and safety of the battery is raised.

Electrode active materials comprising two or more groups of particles having differing chemical compositions, wherein each group of particles comprises a material selected from: (a) materials of the formula A1aM1b(XY4)cZd; and (b) materials of the formula A2eM2fOg; and wherein (i) A1, A2, and A3 are Li, Na, or K; (ii) M1 and M3 comprise a transition metal; (iv) XY4 a phosphate or similar moiety; and (v) Z is OH, or halogen.

A tobacco smoking device comprises a porous mass of active particles adapted to enhance a tobacco smoke flowing over said active particles and binder particles. The active particles comprises about 1-99% weight of the porous mass, and the binder particles comprises about 1-99% weight of said porous mass. The active particles and said binder particles are bound together at randomly distributed points throughout the porous mass. The active particles have a greater particle size than the binder particles.