Gm Global Technolgoy Operations, Inc.

Nicholas P Irish

Michael P Balogh

Nancy L Johnson

Mahmoud H Abd Elhamid

Gayatri Vyas Dadheech

Xiaosong Huang

Bradley Allen Newcomb

Zhongyi Liu

James R Salvador

Chaitanya Sankavaram

Louis G Hector, Jr

Ryan Curtis Sekol

Nicholas W Pinto

Dmitriy Bruder

Daniel P Miller

Sean R Wagner

William L Villaire

Nicole D Ellison

Daad B Haddad

Shaomao Xu

Ryan Gergely

Jin Liu

Matthew Timothy Hamilton

Erik Damon Huemiller

Misle M Tessema

A method of making a calendered electrode for a battery cell comprises introducing a coated electrode having a first surface extending thereover. The coated electrode has a predetermined density of active materials for ion transport. The method further comprises selectively modifying the coated electrode by patterning the first surface to define a patterned electrode having a first portion and a second portion. After the step of selectively modifying, the method further comprises compressing the patterned electrode by calendering the first surface to provide the first portion having a first density of active materials and the second portion having a second density of active materials. The second density is greater than the first density to define the calendered electrode having a spatial variation of active material density.

Calendered electrode and method of making same

A vehicle component includes a surface that is configured to contact a fuel containing ethanol and zinc ions. A sacrificial carbon layer is disposed on the surface. The sacrificial carbon layer has a thickness of greater than or equal to about 250 nm to less than or equal to about 5 &#x3bc;m. The sacrificial carbon layer includes carbon that is configured to complex and solubilize ZnO deposited on the surface, wherein the ZnO forms from the zinc ions carried by the fuel.

Fuel injector for an internal combustion engine

A functionalized adhesive and systems and methods employing the same are disclosed. The functionalized adhesive is configured to form an adhesive joint between a first substrate and a second substrate. The functionalized adhesive comprises a neat adhesive selected to have a bonding strength above a predetermined bonding threshold and a filler selectively dispersed within the neat adhesive. The filler is selected to modify electrical properties of the neat adhesive such that the functionalized adhesive is electrically conductive with a tailored resistivity and such that a resistance of the adhesive joint is greater than a resistance of the first substrate and the second substrate.

Adhesive with tailorable electrical conductivity for monitoring mechanical properties of adhesive joint within polymeric composites

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.

Thermoelectric powered wireless vehicle system sensor systems

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 &#x2267;about 100&#xb0; 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.

Process for lithiating negative electrodes for lithium ion electrochemical cells

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&#xb0; 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.

Method for soldering shape memory alloys

A method of depositing a thin gold coating on bipolar plate substrates for use in fuel cells includes depositing a gold coating onto at least one surface of the bipolar plate substrate followed by annealing the gold coating at a temperature between about 200&#xb0; C. to 500&#xb0; C. The annealed gold coating has a reduced porosity in comparison with a coating which has not been annealed, and provides improved corrosion resistance to the underlying metal comprising the bipolar plate.

Method of depositing durable thin gold coating on fuel cell bipolar plates

Growing community of inventors

Commerce, MI, United States of America

Nicholas P Irish