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公开(公告)号：US20230231129A1
公开(公告)日：2023-07-20
申请号：US18002596
申请日：2021-06-23
Applicant: SAFT
Inventor： Cécile TESSIER , Patrick BERNARD , Kamen NECHEV , Carine STEINWAY , Xilin CHEN , Cédric GOUSSET , Sylvie HERREYRE
IPC: H01M4/58 , H01M10/052 , H01M4/505 , H01M4/525 , H01M50/578 , H01M50/581
CPC classification number: H01M4/5825 , H01M10/052 , H01M4/505 , H01M4/525 , H01M50/578 , H01M50/581 , H01M2220/20 , H01M2004/021
Abstract: The use of a blend of a lithium nickel oxide and a lithium manganese iron phosphate as an active material composition in the cathode of a lithium secondary electrochemical cell for automotive applications, such as hybrid and electric vehicles. This blend allows decreasing the porosity of a lithium manganese iron phosphate-based cathode. It also allows improving the detectability of a gas release in the cell in case of an abnormal operation of the cell. It allows lowering the cell impedance at a low state of charge, typically less than 30%, and reducing the impedance increase of the cell during the cell lifespan.
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2.发明申请公开(公告)号：US20160005549A1
公开(公告)日：2016-01-07
申请号：US14772811
申请日：2014-03-07
Applicant: SAFT
Inventor： Stephanie CHEVALIER , Melanie DENDARY , Patrick BERNARD
CPC classification number: H01G11/24 , H01G11/04 , H01G11/28 , H01G11/34 , H01G11/38 , H01G11/52 , H01G11/58 , H01G11/68 , H01G11/70 , H01G11/86 , H01M12/005 , Y02E60/13
Abstract: An asymmetrical supercapacitor including an alkaline electrolyte, at least one separator, at least one positive electrode including a nickel-based hydroxide and a nickel-based current collector, and at least one negative electrode including a nickel-based current collector and having a porous three-dimensional structure. Some pores are open, the mean diameter of the open pores being greater than or equal to 100 μm and being less than or equal to 300 μm and two contiguous open pores (1, 2) communicate by at least one opening (5) the mean diameter of which is greater than or equal to 35 μm and less than or equal to 130 μm. The three-dimensional structure includes a mixture including at least one activated carbon, at least one electron-conducting additive, and a binding agent including at least one elastomer polymer and at least one thickening polymer.
Abstract translation: 包括碱性电解质，至少一个隔膜，至少一个包括镍基氢氧化物和镍基集电器的正电极的非对称超级电容器和至少一个包括镍基集电器的负电极，并且具有多孔三 维度结构。 一些孔是开放的，开孔的平均直径大于或等于100μm并且小于或等于300μm，并且两个连续的开孔（1,2）通过至少一个开口（5）连通，平均值 其直径大于或等于35μm且小于或等于130μm。 三维结构包括包含至少一种活性炭，至少一种导电添加剂和包含至少一种弹性体聚合物和至少一种增稠聚合物的粘合剂的混合物。
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公开(公告)号：US20200259220A1
公开(公告)日：2020-08-13
申请号：US16637547
申请日：2018-08-22
Applicant: SAFT
Inventor： Patrick BERNARD , Philippe BOREL , Laure LE-GUENNE , Gerard RIGOBERT
IPC: H01M10/48 , H01M10/0525 , H01M10/42 , H01M2/26 , H01M2/16 , H01M4/04 , H01M4/06 , H01M10/04 , G01R31/364 , G01R31/392
Abstract: The invention relates to an electrochemical element and a battery comprising one or more electrochemical elements, with integrated sensors and/or actuators, in particular including an application for monitoring the operation of an electrochemical element or a Li-ion battery, and/or triggering actions in such an element or such a battery, intended to secure the element or the battery. The electrochemical element (1) comprises a closed shell (2) defining an internal volume and a beam (3) arranged therein having alternating positive and negative electrodes respectively connected to two positive and negative electrical output terminals housing separators, the beam (3) being impregnated with electrolyte and further connected by connection means (4) to one (5) of the electrical output terminals. It further comprises one or mote self-powered sensor and/or actuator elements (20 to 24) each arranged in contact with one component selected from the shell (2), the beam (3), the connection means (4), and the output terminal (5), and capable of measuring a physical or chemical magnitude relative to, and/or generating a physical action or effect on, the surroundings thereof.
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