Candescent Technologies Corporation

Enovix Corporation

Other

Silicon Video, Inc.

Candescent Intellectual Property Services, Inc.

Sri International

Enovix Operations Inc.

Canon Kabushiki Kaisha

Sony Corporation

Hewlett-packard Company

Reflectivity, Inc.

Candescent Intellectual Property

Christopher J Spindt

Ashok Lahiri

James D Wilcox

Murali Ramasubramanian

John F Varni

Robert S Busacca

Bruno A Valdes

Kim Han Lee

Richard J Contreras

Geoffrey Matthew Ho

John M Macaulay

Harrold Jones Rust, Iii

Lynn Van Erden

Nirav S Shah

Gardner Cameron Dales

David L Morris

Theodore S Fahlen

Duane A Haven

Jeremie James Dalton

Ken S Matsubayashi

Ronald L Hansen

Roger W Barton

Robert M Duboc

Anthony P Schmid

N Johan Knall

John E Field

George B Hopple

Colin D Stanners

Yu Nan Sun

Jason N Howard

Stephanie Jeanne Oberg

Peter C Searson

Robert Keith Rosen

James C Dunphy

Jonathan C Doan

Thomas John Schuerlein

Kishore K Chakravorty

Christopher J Curtin

Arthur J Learn

John D Porter

Vladimir K Dioumaev

Igor L Maslennikov

Victoria A Bascom

James Montague Cleeves

Michael J Armstrong

Anthony Calcaterra

Robert G Neimeyer

Neelam Singh

David R Morris

Jeffrey Glenn Buck

Kim Lester Fortunati

Joshua David Winans

Neal Sarswat

Donald John Elloway

Johan Knall

Benjamin L Cardozo

William J Scannell

William J Cummings

Kollengode S Narayanan

Paul N Ludwig

Lawrence S Pan

Christopher G Castledine

Matthew A Bonn

Gabriela S Chakarova

John K O'Reilly

Vasil M Chakarov

Jueng Gil Lee

Dennis M Urbon

David T Fouchard

Jennifer Y Sun

Bob Lee Mackey

Paul A Lovoi

George R Brandes

Xueping Xu

Arden Sher

Marc J Madou

Shiyou Pei

Alfred S Conte

Donald R Schropp, Jr

Steve T Cho

Petre Vatahov

Ronald S Besser

Robert L Marion

David C Chang

Kris E Sahlstrom

William C Fritz

Jun (Gordon) Liu

Lee Cressi

Andrew Gerrit Huibers

Ramamoorthy Ramesh

Satyadev R Patel

Robert M Spotnitz

Lee H Veneklasen

Michael James Nystrom

Peter Heureux

Yukinobu Iguchi

Scott Jay Crane

Swayambu Ramani

Daniel M Dobkin

Anthony W Johnson

A secondary battery for cycling between a charged and a discharged state is provided. The secondary battery has an electrode assembly having a population of anode structures, a population of cathode structures, and an electrically insulating microporous separator material. The electrode assembly also has a set of electrode constraints that at least partially restrains growth of the electrode assembly. Members of the anode structure population have a first cross-sectional area, Awhen the secondary battery is in the charged state and a second cross-sectional area, A, when the secondary battery is in the discharged state, and members of the cathode structure population have a first cross-sectional area, Cwhen the secondary battery is in the charged state and a second cross-sectional area, C, when the secondary battery is in the discharged state, where Ais greater than A, and Cis less than C.

Three-dimensional batteries with compressible cathodes

A secondary battery is provided for cycling between a charged and a discharged state, the secondary battery including a battery enclosure, an electrode assembly, carrier ions, a non-aqueous liquid electrolyte within the battery enclosure, and a set of electrode constraints. The set of electrode constraints includes a primary constraint system having first and second primary growth constraints and at least one primary connecting member, the first and second primary growth constraints separated from each other in the longitudinal direction, wherein the primary constraint array restrains growth of the electrode assembly in the longitudinal direction such that any increase in the Feret diameter of the electrode assembly in the longitudinal direction over 20 consecutive cycles of the secondary battery is less than 20%. The set of electrode constraints further includes a secondary constraint system having first and second secondary growth constraints connected by at least one secondary connecting member, wherein the secondary constraint system at least partially restrains growth of the electrode assembly in a second direction upon cycling of the secondary battery.

Dimensional constraints for three-dimensional batteries

A energy storage device for cycling between a charged state and a discharged state, the energy storage device including an enclosure, an electrode assembly and a non-aqueous liquid electrolyte within the enclosure, and a constraint that maintains a pressure on the electrode assembly as the energy storage device is cycled between the charged and the discharged states.

Longitudinal constraints for energy storage devices

Embodiments of secondary batteries having electrode assemblies are provided. A secondary battery can comprise an electrode assembly having a stacked series of layers, the stacked series of layers having an offset between electrode and counter-electrode layers in a unit cell member of the stacked series. A set of constraints can be provided with a primary constraint system with first and second primary growth constraints separated from each other in a longitudinal direction, and connected by at least one primary connecting member, and a secondary constraint system comprises first and second secondary growth constraints separated in a second direction and connected by members of the stacked series of layers. The primary constraint system may at least partially restrain growth of the electrode assembly in the longitudinal direction, and the secondary constraint system may at least partially restrain growth in the second direction that is orthogonal to the longitudinal direction.

Electrode assembly and secondary battery

A secondary battery for cycling between a charged and a discharged state, wherein a 2D map of the median vertical position of the first opposing vertical end surface of the electrode active material in the X-Z plane, along the length LE of the electrode active material layer, traces a first vertical end surface plot, EVP1, a 2D map of the median vertical position of the first opposing vertical end surface of the counter-electrode active material layer in the X-Z plane, along the length LC of the counter-electrode active material layer, traces a first vertical end surface plot, CEVP1, wherein for at least 60% of the length LC of the first counter-electrode active material layer (i) the absolute value of a separation distance, SZ1, between the plots EVP1 and CEVP1 measured in the vertical direction is 1000 μm≥|SZ1|≥5 μm.

Constrained electrode assembly

Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an offset between electrode and counter-electrode layers in a unit cell. Secondary batteries can be prepared by removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population.

Electrode assembly, secondary battery, and method of manufacture

A method is provided for activating a secondary battery having a negative electrode, a positive electrode, and a microporous separator between the negative and positive electrodes permeated with carrier-ion containing electrolyte, the negative electrode having anodically active silicon or an alloy thereof. The method includes transferring carrier ions from the positive electrode to the negative electrode to at least partially charge the secondary battery, and transferring carrier ions from an auxiliary electrode to the positive electrode, to provide the secondary battery with a positive electrode end of discharge voltage Vand a negative electrode end of discharge so voltage Vwhen the cell is at a predefined Vvalue, the value of Vcorresponding to a voltage at which the state of charge of the positive electrode is at least 95% of its coulombic capacity and Vis at least 0.4 V (vs Li) but less than 0.9 V (vs Li).

Replenished negative electrodes for secondary batteries

A secondary battery for cycling between a charged and a discharged state, wherein a 2D map of the median vertical position of the first opposing vertical end surface of the electrode active material in the X-Z plane, along the length LE of the electrode active material layer, traces a first vertical end surface plot, EVP1, a 2D map of the median vertical position of the first opposing vertical end surface of the counter-electrode active material layer in the X-Z plane, along the length LC of the counter-electrode active material layer, traces a first vertical end surface plot, CEVP1, wherein for at least 60% of the length Lc of the first counter-electrode active material layer (i) the absolute value of a separation distance, SZ1, between the plots EVP1 and CEVP1 measured in the vertical direction is 1000 &#x3bc;m&#x2265;|SZ1|&#x2265;5 &#x3bc;m.

A method is provided for activating a secondary battery having a negative electrode, a positive electrode, and a microporous separator between the negative and positive electrodes permeated with carrier-ion containing electrolyte, the negative electrode having anodically active silicon or an alloy thereof. The method includes transferring carrier ions from the positive electrode to the negative electrode to at least partially charge the secondary battery, and transferring carrier ions from an auxiliary electrode to the positive electrode, to provide the secondary battery with a positive electrode end of discharge voltage Vand a negative electrode end of discharge voltage Vwhen the cell is at a predefined Vvalue, the value of Vcorresponding to a voltage at which the state of charge of the positive electrode is at least 95% of its coulombic capacity and Vis at least 0.4 V (vs Li) but less than 0.9 V (vs Li).

Growing community of inventors

Menlo Park, CA, United States of America

Christopher J Spindt