The Swatch Group Research and Development Ltd

Michael Stalder

Olga Reinauer

Jean-Claude Martin

Christophe Germiquet

Pascal Heck

Yves Leterrier

Jan-Anders Manson

Fredy Zullig

Yves Burri

Fredy Zuellig

Kurosh Sohi

Jericho Lynn Moll

Jean-Baptiste Leran

Yves Winkler

Pierpasquale Tortora

Agnes Marlot Doerr

Yoann Mettan

Klaus Yvon

Edmond Koller

Jean-Philippe Rapin

Agnès Marlot Doerr

Frédy Züllig

Yvon Klaus

A method of manufacturing a battery, in particular a button battery, including a case, provided with a container and a cap, and a polymer gasket, in particular made of polypropylene, compressed and bonded between the container and the cap. The method successively includes a step of implanting a silicatised layer by tribochemical sand blasting on all or part of the surface of the gasket, a step of adding a layer of adhesive to the surface of the gasket including the silicatised layer and/or on all or part of the surface of the container and of the surface of the cap intended to be joined to the gasket, a step of assembling the case with the gasket positioned by compression and bonding with the layer of adhesive between the container and the cap.

Battery, in particular a button battery, and method of manufacturing same

A watch including a watch case provided with a case middle, the case middle carrying an element provided with at least one index and defining an inner cavity. The watch further includes at least one pair of electrodes and at least one light source device connected to the electrode pair and arranged opposite the index, the electrodes of the electrode pair being fixed inside the inner cavity, the element being water permeable such that, when the watch is immersed in seawater, the seawater can penetrate the inner cavity so that the electrode pair and the seawater form an electrochemical cell, for powering the light source device.

Watch comprising an element provided with an illuminable index

A battery or an accumulator including an anode case, an anode situated inside the anode case, a cathode case joined to the anode case, a seal sealing the cathode case to the anode case, a cathode situated inside the cathode case between the anode and the cathode case, and a membrane between the anode and the cathode. An outer surface of the battery includes at least one marking.

Battery with a non-conductive structured surface

The present invention relates to an electrochemical cell, comprising:

Electrochemical cell

An electrochemical cell, including: a first current collector including a first collecting section in contact with a first electrode and including a first connecting section; a second current collector overlapping with the first current collector and including a second collecting section in contact with a second electrode and including a second connecting section; wherein the first and second current collectors are mutually connected via their first and second connecting sections and a distance between the first and second connecting sections is equal to or smaller than 50% of the distance between the first and the second collecting sections.

A portable object includes a case forming a housing inside which is arranged a device that requires air to operate, and a closure device including at least one permeable element. The closure device is arranged to provide impermeability to liquids while allowing the atmosphere inside the housing to communicate with the external atmosphere. The case comprises a recess in which a through opening is made, the recess being closed by the closure device. The closure device includes a permeable module mounted to move such that, in a gaseous environment, the permeable module is in a rest position allowing gases to penetrate the case opening through the permeable module, and in a liquid environment, the permeable module is in an operating position in which gases and liquids are blocked. The permeable module comprises a tubular support at the end of which is fixed a membrane.

Semi-impermeable closure device

The present invention concerns an electrochemical device comprising a cathode and an anode separated from each other by a separator, the battery further comprising two current collectors so that the anode and cathode are each arranged between the separator and a current collector, characterized in that at least one of the two current collectors is made of an at least partially amorphous material comprising at least one metallic element.

Amorphous metal current collector

The invention relates to a battery comprising at least a cathode current collector, a cathode, a separator, an electrolyte, an anode and an anode current collector, the cathode being disposed between the cathode current collector and the separator, and the anode being disposed between the separator and the anode current collector, the battery further comprising a sealing gasket disposed on the periphery of the cathode, of the anode and of the separator and connecting the inner peripheral edge of the cathode current collector to the inner peripheral edge of the anode current collector. Said sealing gasket is at least partly made of a viscoelastic elastomeric material.

Battery

The invention relates to a cathode for a metal/air battery comprising at least one active layer produced in an active material and having an air side and a metal side, a current collector and a hydrophobic membrane produced in a hydrophobic material and deposited on the air side of the active layer. Said hydrophobic material has a porous structure and has penetrated into the air side of the active layer so as to form, between the hydrophobic membrane and the active layer, an interpenetration zone of hydrophobic material in the active material, in which there is a concentration gradient of hydrophobic material which decreases in the ingoing direction of air into the cathode.

Cathode for a metal/air battery and methods for manufacturing such a cathode

A portable object includes a case forming a housing in which is arranged a device requiring air to operate. The case includes at least a first opening. The portable object further includes a closure device provided with a valve system arranged to have a first stable, open position in which the orifice is open and allows air to pass through, and a second stable, closed position, in which the orifice is closed so that the portable object is impermeable to gases and to liquids. Switching from the open position to the closed position is automatic in case of immersion.

The present invention concerns a battery including an anode case, an anode situated inside the anode case, a cathode case fixed to the anode case, a seal sealing the cathode case to the anode case, a cathode situated inside the cathode case between the anode and the cathode case, and a membrane between the anode and the cathode, said battery being characterized in that one outer surface of said accumulator includes at least one marking created by local heating of material, said marking being electrically conductive.

Battery with structured surface

Hydrogen sensor including a substrate on which there is deposited an active layer of material comprising a first element selected from the rare earth family, a second element selected from the platinum group metals and a third element selected from the alkaline earth metal family.

Growing community of inventors

Bienne, Switzerland

Michael Stalder