Enovix Corporation

Novellus Systems Incorporated

Aixtron, Inc.

Jeremie James Dalton

Murali Ramasubramanian

Ashok Lahiri

Robert S Busacca

Bruno A Valdes

Kim Han Lee

John F Varni

Harrold Jones Rust, Iii

Nirav S Shah

Richard J Contreras

Gardner Cameron Dales

Christopher J Spindt

Lynn Van Erden

James D Wilcox

Geoffrey Matthew Ho

Ken S Matsubayashi

Jason N Howard

Robert Keith Rosen

Anthony Calcaterra

Michael J Armstrong

Neelam Singh

Jeffrey Glenn Buck

Kim Lester Fortunati

Jonathan C Doan

Joshua David Winans

Thomas John Schuerlein

Neal Sarswat

Jason M Blackburn

Benjamin L Cardozo

Sanjay Gopinath

John Stephen Drewery

Willibrordus Gerardus Maria Van Den Hoek

Benjamin J Cardozo

Sridhar Karthik Kailasam

Ronald Allan Powell

M Ziaul Karim

Sasangan Ramanathan

Ana Rangelova Londergan

Iii Harrold J Rust

Jason Newton Howard

Harrold Jones Rust Iii

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

Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an electrode layer comprising a population of spacer structures comprising a material other than the electrode active material, wherein (a) the spacer population occupies a total volume within the electrode layer within the range of about 0.1% to about 35% of the volume, V, of the electrode layer, and (b) a member of the spacer population is located within each subvolume of the electrode layer comprising (i) at least 25% of the volume, V, of the electrode layer, and (ii) bounded on all sides by (aa) the unit cell portion of the electrode current collector, (bb) the separator layer, (cc) the top surface of the electrode layer, (dd) the bottom surface of the electrode layer, (ee) the first end surface of the electrode layer, and (ff) the second end surface of the electrode layer.

Electrode assembly, secondary battery, and method of manufacture

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

Embodiments of a method for the preparation of an electrode assembly, include 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 in a stacking direction to form a stacked population of unit cells.

Electrode assembly manufacture and device

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.

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 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 Lof the electrode active material layer, traces a first vertical end surface plot, E, 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 Lof the counter-electrode active material layer, traces a first vertical end surface plot, CE, wherein for at least 60% of the length Lof the first counter-electrode active material layer (i) the absolute value of a separation distance, S, between the plots Eand CEmeasured in the vertical direction is 1000 &#x3bc;m&#x2265;|S|&#x2265;5 &#x3bc;m.

Growing community of inventors

San Jose, CA, United States of America

Jeremie James Dalton