Robert Boschgmbh

Robert Bosch Battery Systems Gmbh

Bosch Battery Systems Gmbh

Nikola Corporation

Mark Kotik

Robert J Schoenherr

Mehul Botadra

Adam Bisaro

Bernd Schumann

Ralf Angerbauer

Joerg Thielen

David Naughton

Dan Schneider

Eugene Levin

Laura Bauer

Christian Diessner

Florian Schmid

Jerome Homann

Anne Serout

Gary Mosley

Paul Frick

Sebastian Schoch

Steve Scott

Kevin M Lynk

Anthony A Heaton

Nick Karditsas

Robert Koch

David Sarazin

Anne Buchkremer

Nick Adonakis

Stephen Scott

Jessica Chow

A battery pack includes a battery pack housing that is sealed and flooded with a dielectric fluid. In addition, the battery pack includes a battery module that is disposed in the battery pack housing, and a vent block that is disposed on the lid and communicates with an interior space of the battery pack housing. The vent block is configured to permit the battery pack to accommodate volume changes of the dielectric fluid within the battery pack housing.

Battery pack with a pressure management system

A battery includes a stacked arrangement of electrochemical cells. Each electrochemical cell is free of a cell housing and includes a bipolar plate having a substrate, a first active material layer formed on a first surface of the substrate, and a second active material layer formed on a second surface of the substrate. Each cell includes a solid electrolyte layer that encapsulates at least one of the active material layers, and an edge insulating device that is disposed between the peripheral edges of the substrates of each pair of adjacent cells. Within each cell, an elastic seal is provided between the edge insulating device and the first surface of one cell or the solid electrolyte layer of an adjacent cell.

Battery including bipolar cells that have a cell edge seal

A battery pack includes a battery pack housing that is flooded with a dielectric fluid and sealed. The battery pack includes a vent block disposed on an outer surface of the housing, and a bladder disposed inside the housing that communicates with the vent block via a fitting. The bladder interior space includes air, and the bladder expands and contracts to accommodate volume changes of the dielectric fluid due to changes in the environment of the battery pack.

Battery pack with a pressure management system including a compensating device

A battery includes a stacked arrangement of electrochemical cells. Each electrochemical cell is free of a cell housing and includes a bipolar plate having a substrate, a first active material layer formed on a first surface of the substrate, and a second active material layer formed on a second surface of the substrate. Each cell includes a solid electrolyte layer that encapsulates at least one of the active material layers, and an edge insulating device that is disposed between the peripheral edges of the substrates of each pair of adjacent cells. The edge insulating device physically contacts and is directly secured to one of the first surface of one cell and the solid electrolyte layer of an adjacent cell, and is movable relative to, the other of the first surface of the one cell and the solid electrolyte layer of the adjacent cell.

Battery including bipolar cells that have an edge insulating device

A battery pack includes a battery pack housing having a lid joined to an open end via a fluid-impermeable seal. The battery pack further includes a battery module disposed within the battery housing and comprising a plurality of electrochemical cells. In addition, the battery pack includes a pressure compensation device positioned within the battery pack housing, the pressure compensation device having a first bladder fluidly coupled to a second bladder by a primary fitting. The battery pack housing is filled with a dielectric fluid. And further, the pressure compensation device has a second fluid.

Pressure management device for battery pack

A battery includes a stacked arrangement of electrochemical cells. Each electrochemical cell is free of a cell housing and includes a bipolar plate having a substrate, a first active material layer formed on a first surface of the substrate, and a second active material layer formed on a second surface of the substrate. Each cell includes a solid electrolyte layer that encapsulates at least one of the active material layers, and an edge insulating device that is disposed between the peripheral edges of the substrates of each pair of adjacent cells. A support frame surrounds the cell stack and is configured to receive and support the outer peripheral edge of the edge insulating device of each cell.

Battery including bipolar cells that have an edge insulating device supported by a support frame

The disclosure is directed to systems and methods by which the lifetime, e.g., remaining life or amount of life used, of variable use items, such as rechargeable batteries, battery relays, vehicles and power tools, can be determined that takes into account the conditions of the use of the item. The systems and methods involve an algorithm that can be described as accumulating points based on the real time utilization of the item, e.g., rechargeable battery, battery relay, vehicle, or power tool, and when an agreed-upon number of points have been accumulated, the item can be considered to be at end of life or end of warranty.

Method of determining lifetime of electrical and mechanical components

A forming device is configured to form metal laminated sheet material into a tray-shaped case half while allowing the material to form pleats in the corners of the recess during the forming process while preventing formation of pleats along the flange. The device forms the flange so that excess material in the corners of the case halves is arranged in an undulating shape. As a result, the flange has a waved or ruffled configuration at each corner. Two such case halves are sealed together along the flange to form a reliably sealed package. A method of forming pouch cell is also described.

Electrochemical cell having wave corner sealed joints, and device and method for forming same

An electrochemical cell includes a cell housing and an electrode assembly disposed in the cell housing. The electrode assembly includes an electrode pair that is arranged to form a winding having a polygonal spiral wound shape in which a radius of the corner portions of each turn of the winding is constant, regardless of the number of turns. In addition, a length of the linear portions of one turn of the winding is different than a length of the linear portions of another turn of the winding. Since each turn of the winding includes the corner portions having a desired radius, the volumetric efficiency of the electrode assembly including the winding within a cell housing is improved relative to some cells that use conventional windings. An apparatus and method of forming a polygonal spiral wound winding are disclosed.

Wound electrode assembly for an electrochemical cell, and methods and devices for manufacture of same

A battery pack includes a thermally conductive plate that can be cooled or heated, and an array of electrochemical cells. The cells include a stacked or rolled arrangement of electrode plates, and a current collector disposed in the battery cell that forms an electrical connection with the electrode plates and provides a thermal conduction pathway for conducting heat from the electrode plates to the thermally conductive plate.

Cooling arrangement for an energy storage device

A battery system includes a pair of current collectors that are configured to provide a parallel electrical connection between electrochemical cells of a cell array. The pair of current collectors includes a first current collector plate that provides an electrical connection between the ends of the respective cells, and a second current collector plate that includes openings that receive the cells therein, and provide an electrical connection between the sidewalls of the respective cells. The current collectors are each on the same end of the cells and the opposed end of the cell can be protected or electrically isolated for a multitude of functions, such as cell cooling.

Offset bus bar current collectors

An electrochemical cell has a flexible low-profile sensor device that includes a solid state device or series of solid state devices on a common carrying material that enable the device(s) to sense battery cell conditions and actively perform cell control functions. At least a portion of the sensor device resides outside the cell. When arranged in a stack, cells including the sensor automatically form a communication network.

Low profile sensor and electrochemical cell including same

A pouch cell (A,) includes a generally rectangular cell housing () formed of a metal laminated film, an electrode assembly () that is sealed within the cell housing (), and a current collector device disposed in the cell housing (). The electrode assembly () includes positive electrode portions alternating with negative electrode portions, the positive electrode portions and the negative electrode portions being separated by at least one separator and stacked along a stack axis (). The current collector device is electrically connected to one of the positive electrode portions and the negative electrode portions and exits the cell housing () via an opening () formed in the cell housing (). The opening () is formed in a side () wall of the cell housing () at a location spaced apart from the sealed joint () that closes the cell housing () and at a location facing the stack axis ().

Through-wall current collector for a pouch cell

A vehicle battery system includes a battery housing and a plurality of straps. The battery housing is configured to house a battery for powering the vehicle. Each of the plurality of straps is configured to extend about the battery housing, and includes a first end portion and a second end portion that are configured to be attached to the vehicle. The plurality of straps is configured such that upon application of a shock load to the battery housing along a first axis, the plurality of straps deforms prior to deformation of the battery housing.

Growing community of inventors

Rochester Hills, MI, United States of America

Mark Kotik