About 58 results
https://drivepatents.com/patents/1103227 · 10 Jul 2002
The present invention relates to a rechargeable lithium generator comprising a positive electrode whose electrochemically active material comprises at least one oxide of a transition metal, and a negative electrode comprising a conductive support and an ac...
https://drivepatents.com/patents/1104753 · 8 May 2002
Device (11) suitable for charging an electric energy storage means incorporated in a handheld apparatus, without it being necessary, for carrying out the charging operation, to electrically connect said device (11) suitable for charging to a source of elec...
https://drivepatents.com/patents/1104837 · 2 May 2002
The method enables balanced charging of batteries that have voltages of the same order of magnitude and which may be of different natures. It exploits a charging device (2) capable of supplying at least one constant regulation voltage appropriate to a batt...
https://drivepatents.com/patents/1105080 · 24 Apr 2002
The invention provides a sealed secondary electrochemical generator of the Ni-MH type, with aqueous alkaline electrolyte, comprising an electrode bundle placed in an enclosure and composed of a plurality of negative electrodes and positive electrodes, the ...
https://drivepatents.com/patents/1106109 · 13 Mar 2002
Battery charging method wherein the end of charging is determined by the variation of its temperature comprising the steps consisting of: periodically measuring the temperature of the battery (E2) as well as the variation of battery temperature per unit of...
https://drivepatents.com/patents/1106665 · 13 Feb 2002
An active electrochemical material is made of a monophase hydride alloy with a calcium copper structure, of a specified formula. An active electrochemical material is made up of a monophase hydride alloy with a calcium copper (CaCu5) structure, with a form...
https://drivepatents.com/patents/1106956 · 30 Jan 2002
Device intended to smooth current and voltage transients and consequently prevent the formation of an electric arc during the connection operation by which a charged power battery (1) is put into circuit with an electrical power equipment (2) that it must ...
https://drivepatents.com/patents/1106886 · 30 Jan 2002
System for storing fuel in a handheld device that has a housing (11) made up of a set of pieces that define a receptacle inside which are housed a plurality of electronic circuits (23) and a fuel cell stack. Said fuel cell stack transforms the chemical ene...
https://drivepatents.com/patents/1110130 · 19 Sep 2001
The electrode connection method has a ring or disc (12) used for holding the spaced tongues (2) of the electrode (1) in contact with the battery pole (3), during welding of the electrode tongues to the battery pole via a laser beam passing through the ring...
https://drivepatents.com/patents/1110486 · 5 Sep 2001
The invention relates to a method for distributing electric power in telecommunication central office equipment intended to operate at voltages within a determined range, according to which method the voltage of the distributed power is allowed to drop tem...