公开(公告)号：US09914366B2

公开(公告)日：2018-03-13

申请号：US14306943

申请日：2014-06-17

Applicant: GM Global Technology Operations LLC

Inventor： Gregory P. Meisner ,  Jan F. Herbst ,  Mark W. Verbrugge

IPC: G01N27/416 ,  B60L11/18 ,  G01R1/16 ,  G01R31/36 ,  H01M10/48 ,  H01M10/42 ,  G01R15/18 ,  H01M4/58 ,  H01M10/0525

CPC classification number: B60L11/1861 ,  B60L11/1851 ,  G01R1/16 ,  G01R15/18 ,  G01R31/3606 ,  G01R31/3665 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/4285 ,  H01M10/48 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7005 ,  Y02T10/7011 ,  Y02T10/705 ,  Y10S903/93

Abstract: One exemplary embodiment includes a method including providing a battery, producing a first magnetic field so that a second magnetic field is induced in the battery, sensing a magnetic field resulting from the interaction of the first magnetic field and the second magnetic field, utilizing the sensed net magnetic field to determine the state of charge of the battery.

公开(公告)号：US09548150B2

公开(公告)日：2017-01-17

申请号：US13786807

申请日：2013-03-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chen Zhou ,  Frederick E. Pinkerton ,  Jan F. Herbst

IPC: H01F1/057 ,  H01F1/058 ,  H01F1/059 ,  H01F1/055

CPC classification number: H01F1/0593

Abstract: New magnetic materials containing cerium, iron, and small additions of a third element are disclosed. These materials comprise compounds Ce(Fe12−xMx) where x=1-4, having the ThMn12 tetragonal crystal structure (space group I4/mmm, #139). Compounds with M=B, Al, Si, P, S, Sc, Co, Ni, Zn, Ga, Ge, Zr, Nb, Hf, Ta, and W are identified theoretically, and one class of compounds based on M=Si has been synthesized. The Si cognates are characterized by large magnetic moments (4πMs greater than 1.27 Tesla) and high Curie temperatures (264≦Tc≦305° C.). The Ce(Fe12−xMx) compound may contain one or more of Ti, V, Cr, and Mo in combination with an M element. Further enhancement in Tc is obtained by nitriding the Ce compounds through heat treatment in N2 gas while retaining the ThMn12 tetragonal crystal structure; for example CeFe10Si2N1.29 has Tc=426° C.

Abstract translation: 公开了含有铈，铁和少量添加第三元素的新的磁性材料。 这些材料包括具有ThMn12四方晶系结构（空间群I4 / mmm，＃139）的x = 1-4的化合物Ce（Fe12-xMx）。 理论上确定M = B，Al，Si，P，S，Sc，Co，Ni，Zn，Ga，Ge，Zr，Nb，Hf，Ta和W的化合物，一类基于M = Si 已被合成。 Si同系物的特征在于大磁矩（4πMs大于1.27特斯拉）和高居里温度（264≤Tc≤305℃）。 Ce（Fe12-xMx）化合物可以含有与M元素组合的Ti，V，Cr和Mo中的一种或多种。 通过在N 2气中热处理氮化Ce化合物同时保留ThMn12四方晶体结构，可以进一步提高Tc; 例如CeFe10Si2N1.29具有Tc = 426℃

公开(公告)号：US20140297084A1

公开(公告)日：2014-10-02

申请号：US14306943

申请日：2014-06-17

Applicant: GM Global Technology Operations LLC

Inventor： Gregory P. Meisner ,  Jan F. Herbst ,  Mark W. Verbrugge

IPC: H01M10/42 ,  B60L11/18

CPC classification number: B60L11/1861 ,  B60L11/1851 ,  G01R1/16 ,  G01R15/18 ,  G01R31/3606 ,  G01R31/3665 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/4285 ,  H01M10/48 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7005 ,  Y02T10/7011 ,  Y02T10/705 ,  Y10S903/93

Abstract: One exemplary embodiment includes a method including providing a battery, producing a first magnetic field so that a second magnetic field is induced in the battery, sensing a magnetic field resulting from the interaction of the first magnetic field and the second magnetic field, utilizing the sensed net magnetic field to determine the state of charge of the battery.

Abstract translation: 一个示例性实施例包括一种方法，包括提供电池，产生第一磁场，使得在电池中感应出第二磁场，感测由第一磁场和第二磁场的相互作用产生的磁场，利用所感测的 净磁场来确定电池的充电状态。