公开(公告)号：US20160181594A1

公开(公告)日：2016-06-23

申请号：US14935661

申请日：2015-11-09

Applicant: GM Global Technology Operations, LLC

Inventor： Michael P. Balogh ,  Nicholas P. Irish ,  Nicole D. Ellison

IPC: H01M4/1393 ,  H01M4/04 ,  H01M4/133

CPC classification number: H01M4/1393 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M10/052 ,  H01M10/4235

Abstract: Methods for pre-lithiating negative electrodes for lithium-ion electrochemical cells (e.g., batteries) are provided. The methods include disposing a lithium metal source comprising a layer of lithium metal adjacent to a surface of a pre-fabricated negative electrode. The lithium metal source and electrode are heated (e.g., to a temperature of ≧about 100° C.) to transfer a quantity of lithium to the pre-fabricated negative electrode. This lithiation process adds excess active lithium capacity that enables replacement of irreversibly lost lithium during cell formation and cell aging, thus leading to increased battery capacity and improved battery life. The methods may be batch or continuous.

Abstract translation: 提供了用于锂离子电化学电池（例如电池）的预锂化负极的方法。 所述方法包括将包含锂金属层的锂金属源设置在预制负极的表面附近。 将锂金属源和电极加热（例如，达到约100℃的温度）以将一定量的锂转移到预制的负极。 这种锂化过程增加了过量的活性锂容量，可以在细胞形成和细胞老化期间替换不可逆的丢失的锂，从而导致电池容量增加并延长电池寿命。 方法可以是批次还是连续。

公开(公告)号：US20220069312A1

公开(公告)日：2022-03-03

申请号：US17003391

申请日：2020-08-26

Applicant: GM Global Technology Operations LLC

Inventor： Nicholas P. Irish ,  Ryan C. Sekol ,  Dmitriy Bruder

IPC: H01M4/66 ,  H01M4/04 ,  H01M4/36

Abstract: A method to create variable densities within battery electrodes for motor vehicles includes one more of the following: providing a current collector; applying a first layer of active electrode material on a first surface of the current collector; and calendaring the first layer of active electrode material with a first textured roller to create a textured geometry on the surface on the first layer of active electrode material, a density gradient of the first layer of active electrode material being proportional to the textured geometry.

公开(公告)号：US09903851B2

公开(公告)日：2018-02-27

申请号：US14812039

申请日：2015-07-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Nicholas P. Irish ,  James R. Salvador ,  William L. Villaire

IPC: H01L35/30 ,  G01N33/28 ,  H02J7/00 ,  H02J7/02 ,  G01F23/14 ,  F01N5/02 ,  G01F23/00

CPC classification number: G01N33/2852 ,  F01N5/025 ,  G01F23/0076 ,  G01F23/14 ,  H01L35/30 ,  H02J7/0052 ,  H02J7/0063 ,  Y02T10/16

Abstract: A vehicle includes a thermal harvesting device that is positioned adjacent a heat-generating vehicle system. The thermal harvesting device generates electricity based on a temperature differential in order to power a sensor and a wireless transmitter.

公开(公告)号：US09775252B2

公开(公告)日：2017-09-26

申请号：US14931056

申请日：2015-11-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Nicholas W Pinto, IV ,  Nancy L. Johnson ,  Nicholas P. Irish ,  Michael P. Balogh ,  Daad B Haddad

IPC: B23K1/19 ,  H05K3/34 ,  B23K1/20 ,  B23K35/36 ,  B23K35/362

CPC classification number: H05K3/3489 ,  B23K1/0016 ,  B23K1/19 ,  B23K1/203 ,  B23K3/025 ,  B23K3/027 ,  B23K3/047 ,  B23K3/082 ,  B23K35/3605 ,  B23K35/362 ,  B23K2101/42 ,  B23K2103/14 ,  B23K2103/18 ,  B23K2103/26 ,  H05K3/341 ,  H05K3/3457 ,  H05K2201/10287

Abstract: A method of soldering a shape memory alloy (SMA) element to a component includes positioning a tinned end of the SMA element with respect to a surface of the component, and then directly soldering the tinned end to the surface using solder material having a low liquidus temperature of 500° F. or less when an oxide layer is not present on the SMA element. The end may be soldered using lead-based solder material at a higher temperature when an oxide layer is present. The end may be tinned with flux material containing phosphoric acid or tin fluoride prior to soldering the SMA element. The SMA element may be submersed in an acid bath to remove the oxide layer. The solder material may contain tin and silver, antimony, or zinc, or other materials sufficient for achieving the low liquidus temperature. Heat penetrating the SMA element is controlled to protect shape memory abilities.

公开(公告)号：US20140242452A1

公开(公告)日：2014-08-28

申请号：US13778968

申请日：2013-02-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Nicholas P. W. Pieczonka ,  Junghyun Kim ,  Zicheng Li ,  Timothy J. Fuller ,  Nicholas P. Irish ,  Bob R. Powell, JR. ,  Ion C. Halalay

IPC: H01M4/62

CPC classification number: H01M4/622 ,  C08L33/02 ,  H01M4/131 ,  H01M4/136 ,  H01M10/052

Abstract: A lithium-ion cell has a positive electrode comprising at least one active material comprising a lithium transition metal compound in a binder comprising at least one binder material with functional groups selected from alkali and alkaline earth salts of acid groups and hydroxyl groups, amine groups, isocyanate groups, urethane groups, urea groups, amide groups, and combinations of these; a negative electrode comprising metallic lithium or a lithium host material with appropriately low operation voltage vs. metallic lithium; a nonaqueous solution of a lithium salt; and an electrically nonconductive, ion-pervious separator positioned between the electrodes.

Abstract translation: 锂离子电池具有包括至少一种包含锂过渡金属化合物的活性材料的正极，所述活性材料在包含至少一种选自酸基和羟基的碱金属和碱土金属盐的官能团的至少一种粘合剂材料的粘合剂中，胺基， 异氰酸酯基，氨基甲酸酯基，脲基，酰胺基和它们的组合; 负极包含金属锂或具有合适的低操作电压的金属锂的锂主体材料; 锂盐的非水溶液; 以及位于电极之间的非导电的，离子可透过的分离器。