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Saft patents


Recent patent applications related to Saft. Saft is listed as an Agent/Assignee. Note: Saft may have other listings under different names/spellings. We're not affiliated with Saft, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | Saft-related inventors


Positive electrode for a lithium electrochemical cell

A composition of active material for a positive electrode of a lithium-ion electrochemical cell is provided comprising: (a) a lithiated oxide of formula li1+xmo2 in which: 0≤x≤0.15, m designates niamnbcocm′d where a>0; b>0; c>0; d≥0 and a+b+c+d=1; m′ being chosen from b, mg, al, si, ca, ti, v, cr, fe, cu, zn, y, zr, nb, mo or a mixture of these; (b) a lithiated phosphate of formula limn1−ym″ypo4 where m″ represents at least one element chosen from the group consisting of fe, ni, co, mg and zn; and 0<y<0.5; the particle size distribution of the lithiated oxide being characterized by a first volume median diameter of the particles dv501≥500 nm; the particle size distribution of the lithiated phosphate being characterized by a second volume median diameter of the particles dv502≥500 nm; and dv502/dv501≥1.5.. . ... Saft

Electrical connection part for a secondary cell

An electrical connection part for a secondary cell and a secondary cell that includes this part and finding particular application in the field of lithium-ion type batteries are provided. The electrical connection part for connection to a current output terminal of a secondary cell includes a first portion for connection to an electrode plate group of the secondary cell providing electrical connection between the electrode plate group and the output terminal. ... Saft

Compensation system for swelling of electrochemical cells

The invention resolves the problem of swelling of sealing electrochemical cells of prismatic format when they are assembled side by side in a grouping box by proposing a battery comprising at least two electrochemical cells (1a, 1b) of prismatic format, wherein the electrochemical cells are separated by a rigid wedge (2) having a hardness greater than or equal to 90 shore a according to the standard astm d 2240 and by a flexible wedge (3) having a hardness of up to 60 shore a according to the standard astm d 2240, the rigid wedge and the flexible wedge being electrically insulating.. . ... Saft

Ni-cd battery with a state of charge indicator

A battery made up of nickel-cadmium cells includes an indicator for displaying a state of charge comprising sensors for performing continuous measurements of voltage and current and of temperature of the battery, a memory storing at least a history of charge/discharge, a predefined reference voltage, current and temperature, and the measurements and history determined, and a control unit for determining an operation mode of the battery and determining a correction to be applied to the voltage and current measured, calculating a theoretically available capacity of the battery depending on the operating mode and the correction, determining a need for recalibration of the theoretically available capacity of the battery enabling a capacity actually available of the battery to be calculated, and based on the capacity actually available, defining the state of charge of the battery.. . ... Saft

Electronic connect/disconnect device and method for a high voltage battery

An electronic connecting/disconnecting device for a high voltage unit for storing electrical energy designed to be charged and discharged asymmetrically, in particular a battery arranged as part of an electrical circuit is provided. The device includes a charging switch and a discharge switch arranged in parallel and dimensioned asymmetrically for charging and discharging the unit for storing electrical energy, the charging switch being adapted to block, in a first direction of passage, an electric current flowing therethrough, this first direction of passage being opposite to a second direction of passage in which the discharge switch is adapted to block an electric current passing therethrough, the device being able to be activated when a physical magnitude of an electrical current flowing through the circuit is greater than a predetermined threshold.. ... Saft

Device and method for making a battery safe

A safety device (19) for a battery (12) being designed so that an electrical connector (18) can be connected to the positive (14) and negative (16) electrical terminals of the battery (12) in a first (a+, a−) or a second (b+, b−) connection position, the safety device (19) being adapted to be selectively positioned in a first or a second safety position so that only the desired connection positions are accessible to an electrical connector (18). A battery including the safety device or a set of such batteries and a method for making such a set of batteries safe.. ... Saft








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