9238results about "Small-sized cells cases/jackets" patented technology

A surgical power tool includes a hand unit and a tool holder. The tool holder engages a hub of a tool to hold the tool during use. One tool holder includes a substantially planar support surface, a pair of spaced-apart sidewalls protruding from the support surface, each sidewall having at least one tab extending from the sidewall toward the other of the sidewalls. A tool clamp, including a post protrudes from the support surface with an enlarged head at a distal end thereof. A lock button protrudes from the support surface, the lock button being depressible toward the support surface. Another tool holder includes an output shaft having a driven end and a free end, the free end of the output shaft having a slot formed therein. A collet is disposed coaxially with the output shaft and is rotatable relative thereto. The collet has a collet wall extending between the first and second ends of the collet. The collet has a plurality of slots in the first end of the collet, a plurality of grooves in an inner surface of the collet wall, and a plurality of internal ridges protruding from the inner surface of the collet wall.

A surgical power tool includes a hand unit and a detachable power module received in the hand unit to provide power to the hand unit. The power module includes a housing, an electric motor in the housing to provide mechanical energy to the hand unit, an electrical power supply in the housing to provide electrical energy to the electric motor, and an electronic controller in the housing for controlling the electric motor. Since the power module is received in the hand unit, there is no need for the power module to be sterilized.

A battery assembly for a medical device includes an elongate cathode, an elongate anode, an electrolyte, and an elongate housing assembly encapsulating the cathode, the anode, and the electrolyte. The battery assembly also includes a first electrode that is exposed from and electrically insulated from the housing assembly. One of the anode and the cathode is electrically coupled to the first electrode, and the other of the anode and the cathode is electrically coupled to the housing assembly. One of the cathode and the anode includes a first portion and a second portion disposed in spaced relationship from the first portion. The other of the cathode and the anode is disposed between the first and second portions.

A rechargeable battery assembly comprises a rechargeable battery unit and a data and power connector plug. The battery assembly has a deployed configuration in which the battery assembly has the general form of and functions as a conventional battery format, and a recharge configuration in which the data and power connector plug is made accessible to enable said connector to be connected to a suitable receptacle on a computing or peripheral device for recharging of the battery.

A method for production of a stacked battery having a plurality of positive electrode current collection tabs and a plurality of negative electrode current collection tabs drawn out from a stacked member formed by laying positive electrodes and negative electrodes alternately one on the other with separators interposed between them and bonded respectively to a positive lead terminal and a negative lead terminal comprises a step of determining in advance a simultaneously bondable number, or the number of positive electrode current collection tabs and the number of negative electrode current collection tabs that can be laid one on the other and collectively bonded, and bonding conditions for bonding them and a step of forming groups of current collection tabs, each group being formed by laying a number of current collection tabs not exceeding the simultaneously bondable number one on the other, displacing the bonding positions of the groups of positive electrode current collection tabs or those of negative electrode current collection tabs relative to each other in the direction of drawing out the positive electrode current collection tabs or the negative electrode current collection tabs, whichever appropriate, or in a direction perpendicular to the direction on the surface of the positive lead terminal or the negative lead terminal, whichever appropriate, and collectively bonding the positive electrode current collection tabs or the negative electrode current collection tabs of each group under the bonding conditions.

The disclosed embodiments relate to a battery cell which includes a set of electrode sheets of different dimensions arranged in a stacked configuration to facilitate efficient use of space inside a portable electronic device. For example, the electrode sheets may be arranged in the stacked configuration to accommodate a shape of the portable electronic device. The stacked configuration may be based on a non-rectangular battery design such as a toroidal design, an L-shaped design, a triangular design, a pie-shaped design, a cone-shaped design, and / or a pyramidal design.

Protected anode architectures have ionically conductive protective membrane architectures that, in conjunction with compliant seal structures and anode backplanes, effectively enclose an active metal anode inside the interior of an anode compartment. This enclosure prevents the active metal from deleterious reaction with the environment external to the anode compartment, which may include aqueous, ambient moisture, and / or other materials corrosive to the active metal. The compliant seal structures are substantially impervious to anolytes, catholyes, dissolved species in electrolytes, and moisture and compliant to changes in anode volume such that physical continuity between the anode protective architecture and backplane are maintained. The protected anode architectures can be used in arrays of protected anode architectures and battery cells of various configurations incorporating the protected anode architectures or arrays.

An electrode for a rechargeable lithium battery which includes a thin film composed of active material that expands and shrinks as it stores and releases lithium, e.g., a microcrystalline or amorphous silicon thin film, deposited on a current collector, characterized in that said current collector exhibits a tensile strength (=tensile strength (N / mm2) per sectional area of the current collector material×thickness (mm) of the current collector) of not less than 3.82 N / mm.

Microscopic batteries, integratable or integrated with microelectromechanical systems or other microscopic circuits, including a MEMS microcircuit, and methods of microfabrication of such microscopic batteries are disclosed, among which comprise closed system microscopic batteries for internal storage of electricity using interval reactants only, which comprise microscopic electrodes, electrolyte and reservoir for the electrolyte.

A battery apparatus comprising a casing, at least two stacked lithium ion cells a member for maximizing the utilization of the casing and a member for precluding inadvertent deformation of the casing. The casing includes a non-uniform inner periphery. Each of at least two stacked lithium ion cells is positioned within the casing. The utilization maximizing member maximizes the utilization of the inner periphery of the casing by facilitating the independent shaping of each of the at least two stacked lithium ion cells to confirm to the inner periphery. As a result, the shape of one cell does not limit or dictate the shape of any other cell. The deformation precluding member is associated with each of the at least two lithium ion cells, and, substantially precludes inadvertent deformation of the casing by the at least two lithium ion cells, during cell cycling and storage. The invention further includes a process for fabricating a battery apparatus.

A battery of lithium electrochemical generators including a casing; a plurality of lithium electrochemical generators housed in the casing, each generator including a container; a rigid, flame-retardant foam with closed porosity formed of an electrically insulating material filling the space between the inner wall of the casing and the free surface of the side wall of the container of each electrochemical generator, the foam covering the free surface of the side wall of the container of each electrochemical generator over a length representing at least 25% of the height of the container.

A framed lithium battery cell group includes a first frame member (20) and a second frame member (30). The frame members are locked together, clamping the lithium battery cell pack (10) on the seal edge surfaces (13, 16), thereby providing structural rigidity and protection from damage due to handling and vibration. Each of the frame members (20, 30) has multiple pins (25) and sockets (26) on the side opposite the clamping surface (33) to facilitate aligning and stacking multiple lithium battery cell pack and frame assemblies to form a lithium battery cell group (50). Each of the frame members (20, 30) include a buss bar capture feature (22, 32) having a bus bar (40) inserted therein for electrically connecting all of the terminals for a given lithium battery pack group to the buss bar (40).

A lithium / iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The iron disulfide of the positive electrode has a controlled average particle size range which allows the electrochemical cells to exhibit desired properties in both low and high rate applications. In various embodiments, the iron disulfide particles are wet milled, preferably utilizing a media mill or milled utilizing a non-mechanical mill such as a jet mill, which reduces the iron disulfide particles to a desired average particle size range for incorporation into the positive electrode.

A power system adapted for supplying power in a high temperature environment is disclosed. The power system includes a rechargeable energy storage that is operable in a temperature range of between about seventy degrees Celsius and about two hundred and fifty degrees Celsius coupled to a circuit for at least one of supplying power from the energy storage and charging the energy storage; wherein the energy storage is configured to store between about one one hundredth (0.01) of a joule and about one hundred megajoules of energy, and to provide peak power of between about one one hundredth (0.01) of a watt and about one hundred megawatts, for at least two charge-discharge cycles. Methods of use and fabrication are provided. Embodiments of additional features of the power supply are included.

A thin film battery including an anode layer, a cathode layer and a solid electrolyte layer. The battery also includes, a planarization layer applied to the thin film battery. The planarization layer has a surface roughness of no more than about 1.0 nanometers root mean square and a flatness no larger than about 0.005 cm / inch. A barrier layer is applied to the planarization layer. The barrier layer is provided by one or more layers of material selected from the group consisting of polymeric materials, metals and ceramic materials. The planarization layer and barrier layer are sufficient to reduce oxygen flux through the barrier layer to the anode layer to no more than about 1.6 μmol / m2-day, and H2O flux through the barrier layer to the anode layer to less than about 3.3 μmol / m2-day thereby improving the life of the thin film battery.

A battery case comprises: a battery tray formed from a resin, the battery tray having a bottom wall on which batteries are mounted, and a peripheral side wall which surrounds the periphery of the bottom wall; and a battery cover which covers the battery tray. A flange portion is provided on the upper surface of the peripheral side wall, and a metallic housing-shaped frame is provided beside the outer wall of the battery tray. The flange portion and the battery cover are fixed onto the upper surface of the metallic housing-shaped frame by fastening members.

A system provides an environmental barrier also useful for providing a circuit, for example, one having a thin-film battery such as one that includes lithium or lithium compounds connected to an electronic circuit. An environmental barrier is deposited as alternating layers, at least one of the layers providing a smoothing, planarizing, and / or leveling physical-configuration function, and at least one other layer providing a diffusion-barrier function. The layer providing the physical-configuration function may include a photoresist, a photodefinable, an energy-definable, and / or a maskable layer. The physical-configuration layer may also be a dielectric. A layered structure, including a plurality of pairs of layers, each pair including a physical configuration layer and a barrier layer with low gas-transmission rates, may be used in reducing gas transmission rate to beyond currently detectable levels.

A non-aqueous battery is provided in a pouchy casing comprising opposing sheets of at least three-layer laminates, each laminate comprising (1) an inner thermoplastic resin layer, (2) a middle metal foil layer, and (3) an outer electrically insulating material layer, wherein the pouchy casing has an elongated, hermetic adhesion area along a periphery of the pouchy casing, and the middle metal foil layer has a peripheral elongated region in the elongated, hermetic adhesion area of the pouchy casing, and at least a pair of terminals electrically connected to the cathode and anode of the battery extends through and protrudes from the terminal-withdrawal sites in the elongated, hermetic adhesion area toward the outside of the pouchy casing, and the battery has at least one of the following features: (i) the peripheral elongated region of the middle metal foil layer has cut-out portions around the terminal-withdrawal sites and (ii) the surface of the peripheral edge of the pouchy casing is provided with electric insulation at least at portions around the terminal-withdrawal sites.

A system includes a thin-film battery and an activity-activated switch. The system is placed on a substrate with an adhesive backing. In some embodiments, the substrate is flexible. Also formed on the substrate is an electrical circuit that includes electronics. The activity-activated switch places the thin-film battery in electrical communication with the circuit and electronics. The battery and the circuit are formed on the substrate and may be comprised of one or a plurality of deposited layers.

Disclosed herein are a secondary battery, which is formed in the shape of a plate and has an electrode assembly mounted in a battery case made of a laminated sheet including a metal layer and a resin layer, wherein the secondary battery is constructed in a structure in which independent coupling type frame members are mounted to the outside part of a sheathing member serving as the battery case, and a medium- or large-sized battery module including the same as a unit cell. Consequently, the secondary battery has a high mechanical strength and a large sealing force. Furthermore, the electrical connection is accomplished without bending the electrode leads. Also, the battery module, which is constructed with the secondary battery as a unit cell, can be manufactured with a compact structure and a relatively light weight. Furthermore, the assembly process of the battery module is greatly simplified. The structural stability of the battery module according to the present invention is very high, and therefore, the battery module can be preferably used as a power source for electric vehicles, hybrid electric vehicles, electric motor cycles, and electric bicycles.

A rechargeable battery includes an electrode assembly, a case containing the electrode assembly and a cap assembly coupled to the case. The electrode assembly includes a first electrode, a second electrode, and a separator between the first electrode and the second electrode. The cap assembly includes a cap plate and a deformable plate attached to the cap plate and configured to deform in response to an increase in pressure inside the case to electrically couple the first electrode and the second electrode to each other.

In a battery pack having a plurality of battery cells 10 connected in series and / or parallel, the battery pack is provided with a plurality of battery cells 10 each encased in a rectangular external case, and a plurality of separators 20 with electrical and heat insulating properties covering the outside of each battery cell external case excluding electrode terminals 12. Each separator 20 is disposed to intervene between adjacent battery cells 10 putting the external cases of those battery cells 10 in contact with both sides of the separator 20. With the external case of each battery cell 10 covered by separators 20 while exposing electrode terminals 12, those electrode terminals 12 are connected together. As a result, excluding required regions, battery cells 10 can be enclosed and unintended events such as short circuits can be effectively prevented.

A novel method for production of and an apparatus for an encapsulated solid-state electrochemical device is disclosed. The present invention provides for electrical devices, such as, for example, thin-film batteries with sensitive chemistries that can survive environmental exposure while providing external electrical contact to the internal cell chemistry. The method of packaging of the present invention may include bonding one or more protective multi-layer laminates to the environmentally sensitive surfaces of an electronic device. The present invention may provide the advantage of avoiding entrapped air beneath the laminates.

A method and apparatus for making thin-film batteries having composite multi-layered electrolytes with soft electrolyte between hard electrolyte covering the negative and / or positive electrode, and the resulting batteries. In some embodiments, foil-core cathode sheets each having a cathode material (e.g., LiCoO2) covered by a hard electrolyte on both sides, and foil-core anode sheets having an anode material (e.g., lithium metal) covered by a hard electrolyte on both sides, are laminated using a soft (e.g., polymer gel) electrolyte sandwiched between alternating cathode and anode sheets. A hard glass-like electrolyte layer obtains a smooth hard positive-electrode lithium-metal layer upon charging, but when very thin, have randomly spaced pinholes / defects. When the hard layers are formed on both the positive and negative electrodes, one electrode's dendrite-short-causing defects on are not aligned with the other electrode's defects. The soft electrolyte layer both conducts ions across the gap between hard electrolyte layers and fills pinholes.

A large battery pack of specified voltage and capacity can be assembled from a plurality of identical small cells by dividing the specified capacity by a nominal battery module capacity to determine a desired number of parallel modules to be provided, dividing the nominal battery module capacity by a nominal cell card capacity, to determine the number of cell cards required in each module, connecting the call cards in parallel to a common buswork to form the battery module, and connecting the modules in parallel to obtain the specified battery pack capacity and in series to obtain the specified battery pack voltage Protection circuitry can be implemented at the module level, by disconnecting one or more modules or the entire battery pack if a fault at the module level is identified; at the cell card level, by disconnecting a cell card if a cell within it is determined to be faulty; and / or internally, in each cell.

The present invention relates to a rechargeable battery. The rechargeable battery includes an electrode assembly, a case, electrode terminals, and a cap plate. The electrode assembly includes a separator and an anode and a cathode disposed at both sides of the separator. The case houses the electrode assembly. The electrode terminals are electrically connected to the electrode assembly and protrude outwardly from the case. The cap plate closes and seals the case. The cap plate includes a terminal hole for receiving the electrode terminals and a sealing reinforcing member formed along a circumference of the terminal hole and having a greater thicker than a periphery thereof.

PCT No. PCT / JP96 / 01794 Sec. 371 Date Dec. 8, 1997 Sec. 102(e) Date Dec. 8, 1997 PCT Filed Jun. 28, 1996 PCT Pub. No. WO97 / 01600 PCT Pub. Date Jan. 16, 1997A resin composition comprising a polypropylene resin, a polyphenylene ether resin and a compatibility agent wherein dispersion particles comprising the polyphenylene ether resin (b) are dispersed in a matrix comprising the polypropylene resin (a), a minor diameter of the dispersion particles is 2 mu m or less, and the ratio of major diameter / minor diameter is 1-10.