Novelis, Inc.

Rivian IP Holdings, LLC

Liangliang Li

Robert Bruce Wagstaff

Rajeev G Kamat

Samuel Robert Wagstaff

Theresa Elizabeth Macfarlane

Changook Son

Luis Fanor Vega

ChangOok Son

Theresa Elizabeth MacFarlane

Peter Lloyd Redmond

Milan Felberbaum

Sazol Kumar Das

Stephen Buckingham

Yudie Yuan

Alp Manavbasi

Julio Malpica

Dechao Lin

Cedric Wu

Dewei Zhu

Yichi Zhang

Amanda Owens

Brian Paradis

Kevin Mark Johnson

Kumar Sundaram

John Anthony Hunter

Thomas J Beck

Lasitha Cumaranatunge

An apparatus may include a material with different portions having different densities. In one or more implementations, the material includes beads. Despite the different densities, the material is the same for both densities, thus the material may include the same chemistry but with different densities. Based on using a material of the same chemistry, the beads may fuse together. The apparatus may take the form of a potting structure for battery cells. Alternatively, the apparatus may take the form of a battery subassembly for various battery applications.

Multi-density material for battery subassemblies

Disclosed are aluminum alloy products and methods of making and processing such products. Thus, disclosed are aluminum alloy products exhibiting controllable surface properties, including excellent bond durability, low contact resistance, and corrosion resistance. Aluminum alloy products described herein include a migrant element, a subsurface portion having a concentration of the migrant element, and a bulk portion having a concentration of the migrant element. The aluminum alloy product comprises an enrichment ratio of 4.0 or less, wherein the enrichment ratio is a ratio of the migrant element concentration in the subsurface portion to the concentration in the bulk portion. Additionally, the aluminum alloy products surface and/or subsurface can contain phosphorus (e.g., elemental phosphorus or oxidized phosphorus). The phosphorus containing surface provides reduced electronic stress on an electrode tip of a resistance spot welding apparatus, and an extended service lifetime (e.g., weld cycles to failure) of the electrode tip.

Aluminum alloy products exhibiting improved bond durability and methods of making the same

Described are techniques for treating metals by exposing the metals to reactive solutions to reduce a temperature of the metal and to modify a surface of the metal through chemical reaction, such as by removing material or adding material. The disclosed techniques may advantageously increase the rate at which the temperature of the metal may be reduced as compared to conventional cooling techniques involving pure water, increase metal manufacturing rates, and reduce overall complexity of a metal manufacturing process. The disclosed techniques may also advantageously expand the range of available surface treatments, allow for faster surface treatment processes, and reduce or eliminate the use of hazardous chemicals during a surface treatment process. Such advantages may arise by employing chemical processing that takes place or takes place more efficiently at elevated temperatures.

Reactive quenching solutions and methods of use

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Atlanta, GA, United States of America

Liangliang Li