Palo Alto Research Center Inc.

University of California

Massachusetts Institute of Technology

University of Michigan

Chang-Jun Bae

Eric J Shrader

Peter Kiesel

Saroj Kumar Sahu

Ajay Raghavan

Corie Lynn Cobb

Yet-Ming Chiang

Bhaskar Saha

Hoe Jin Hah

Ranjeet Balakrishna Rao

Geun-Chang Chung

John William Halloran

Lars Wilko Sommer

Mohamed Alamgir

Alexander Lochbaum

Tobias Staudt

Antoni P Tomsia

Can K Erdonmez

Bokkyu Choi

Gyu-Ok Hwang

Qiang Fu

Jessy Rivest

Ashish Manandhar

A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.

Embedded fiber optic cables for battery management

A method of fabricating an electrochemical energy storage cell such as a battery or supercapacitor involves positioning a portion of a fiber optic cable that includes at least one optical fiber sensor over a current collector layer. The electrode material of the energy storage cell is deposited over the current collector layer and the fiber optic cable.

Battery with embedded fiber optic cable

A battery has a lithium anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of a first and second material, wherein the first material contains sulfur and the second material comprises a solid electrolyte.

High performance all solid lithium sulfur battery with fast lithium ion conduction

Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.

Controlled porosity in electrodes

An electrode has a first set of stripes of a graphite-containing material, and a second set of stripes of silicon-containing material interdigitated with the first set of stripes. A method of manufacturing an electrode includes extruding first and second materials simultaneously onto a substrate in interdigitated stripes, wherein the first material comprises a graphite-containing material and the second material comprises a silicon-containing material.

Advanced Si-C composite anode electrode for high energy density and longer cycle life

An electrode having a first set of stripes of sulfur-containing materials forming electroactive regions and a second set of stripes of a material forming non-electroactive regions interdigitated with the first set of stripes.

Trapping dissolved polysulfide for high performance batteries

A battery has an anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of two different types, one of the types forming pore channels or porous structure and one of the types being more compressible than others type.

High energy and power Li-ion battery having low stress and long-term cycling capacity

A three dimensional electrode structure having a first layer of interdigitated stripes of material oriented in a first direction, and a second layer of interdigitated stripes of material oriented in a second direction residing on the first layer of interdigitated stripes of material. A method of manufacturing a three dimensional electrode structure includes depositing a first layer of interdigitated stripes of an active material and an intermediate material on a substrate in a first direction, and depositing a second layer of interdigitated stripes of the active material and the intermediate material on the first layer in a second direction orthogonal to the first direction.

Three dimensional co-extruded battery electrodes

A battery has an anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of materials, one of the materials forming a pore channel.

Advanced, high power and energy battery electrode manufactured by co-extrusion printing

Growing community of inventors

Mountain View, CA, United States of America

Chang-Jun Bae