Cps Technology Holdings LLC

Johnson Controls Technology Company

Clarios Advanced Solutions Gmbh

Columbia University

Johnson Controls Technology LLC

Johnson Controls-saft Advanced Power Solutions LLC

Johnson Controls Advanced Power Solutions Gmbh

Xugang Zhang

Jason Daniel Fuhr

Richard M DeKeuster

Christopher M Bonin

Matthew Russell Tyler

Jennifer L Czarnecki

Jonathan Paul Lobert

David R Boone

Dale B Trester

Nicholas E Elison

Chang Liu

Martin Wiegmann

Kem M Obasih

Daniel B Le

Ken Nakayama

Binbin Fan

Yingyao Fu

Robert J Mack

Chee Wei Wong

Xiaochun Li

Liang Cheng

Wei Qu

Peng Song

Abed Al Fattah Isam Shafie

Peter A Selthafner

Rohit Chatterjee

Gary P Houchin-Miller

John P Dinkelman

Joerg Birkholz

Marco Jansen

Christian Kuper

Frederic C Bonhomme

Judson W Riggins

Fredrick C Ellner

Abed Ai Fattah Isam Shafie

Rajesh Kumar

Jennifer Lynn Czarnecki

Jonathan P Lobart

An electrical conduction assembly comprising a flexible layer, an interface being associated with and electrically coupled to a terminal of an external electrical element, and a circuit trace coupled to the flexible layer and to the interface. The circuit trace includes a fuse as part of the trace, and the fuse is associated with the interface. Also disclosed is a battery including the electrical conduction assembly. Further disclosed is a bus bar holder for a battery. The bus bar holder includes a lead-in structure coupled with a main body on a first side. The lead in structure includes a first lead-in wall to be disposed between a first plurality of battery cells and a second lead-in wall orthogonal to the first lead-in wall. The bus bar holder can also include a plurality of pockets, each or which includes a respective aperture and a respective recess.

Bus bar holder including a lead-in structure, electrical conduction assembly having a bus bar, and battery including the same

A battery module includes electrochemical cells having an electrochemical cell with a terminal end. The battery module also includes a bus bar carrier configured to interface bus bars with terminals of the electrochemical cells and having a window. The battery module also includes a flex circuit disposed on the bus bar carrier, and a temperature sensor welding tab of the flex circuit. The temperature sensor welding tab includes a circuit engagement region coupled to the flex circuit, a welding region coupled to the terminal end of the first electrochemical cell, and a transverse region extending through the window of the bus bar carrier and between the circuit engagement region and the welding region.

Battery module having a sensor welding tab

Battery housing

Systems and methods are disclosed for battery cells with positive polarity rigid containers. In accordance with disclosed embodiments, the cell may include a container and a lid piece that couple together to form a rectangular prismatic geometry. An electrode assembly having positive and negative coils may be disposed within the cell, and the positive coil may be conductively coupled to the cell. In this way, the cell (e.g., both the lid and the container) may be positively polarized. Further, the electrode assembly may incorporate a jelly-roll or a stacked structure. In one embodiment, the lid piece may include a vent that opens in response to pressure in the cell surpassing an established threshold. The lid may further include a positive terminal, negative terminal, and a method for filling the cell with electrolyte. Another embodiment may provide a battery module include multiple cells with positive polarity rigid containers.

Prismatic lithium ion cell with positive polarity rigid container

A lithium-ion battery cell includes a casing, a first terminal pad having a first polarity and positioned proximate the casing, a second terminal pad having a second polarity opposite to the first polarity and positioned proximate the casing, and a reversal device formed into the casing and responsive to an increase in internal pressure within the casing so as to cause a short circuit between the first terminal pad and the second terminal pad when the internal pressure reaches a threshold. The reversal device has a folded configuration and an unfolded configuration, and is configured to transition from the folded configuration to the unfolded configuration in response to an increase in the internal pressure from below the threshold to the threshold.

Reversal device for Li-ion cell overcharge protection

A battery system having a housing configured to receive a battery cell that is configured to generate thermal energy. The housing includes a first wall and a second wall, both of which are positioned proximate to the battery cell. The first wall and the second wall form in part a cell compartment. The battery system further includes a unitary heat sink having a first portion embedded into the first wall and a second portion embedded into the second wall.

Battery system having a passive heat sink

Disclosed herein is a battery system, comprising: a battery module comprising a housing; a battery terminal disposed on a first side of the housing of the battery module; and a cover disposed on the housing, wherein the cover comprises a battery terminal cover extending from the cover and configured to adjust between a first position and a second position, wherein the battery terminal cover, in the first position, is configured to at least partially shroud the battery terminal, and wherein the battery terminal cover, in the second position, is configured to expose the battery terminal.

Terminal cover

An overcharge protection device cover assembly for use with a battery cell housing. The battery cell housing has a first terminal and a second terminal, the overcharge protection device cover assembly including a first terminal pad having a first length. The first terminal pad is contactable with the first terminal of the battery cell housing. The assembly also includes a second terminal pad having a second length that is greater than the first length. The second terminal pad is contactable with the second terminal of the battery cell housing. A reversal device of the assembly is deflectable toward the first and second terminal pads. A conductive element of the assembly is positioned between the reversal device and the first and second terminal pads.

Overcharge protection device with uneven terminal pads

A battery system includes an electrochemical cell. The electrochemical cell includes a cover having an opening. The electrochemical cell also includes an aluminum terminal pad disposed proximate an outer surface of the cover. The pad opening includes a tapered surface such that the pad opening has a larger cross-sectional width proximate an upper surface of the aluminum terminal pad than proximate a lower surface of the aluminum terminal pad opposite the upper surface and facing the outer surface of the cover. The electrochemical cell also includes a rivet having a body portion extending through the opening in the cover, a head portion disposed in the pad opening of the aluminum terminal pad, and a shoulder extending between the body portion and the head portion. The head portion includes an inverted cone shape corresponding with the tapered surface of the pad opening.

Weldable aluminum terminal pads of an electrochemical cell

A battery module includes a housing having an opening and an electrochemical cell disposed in the housing. The electrochemical cell includes a first cell surface having electrode terminals and an second cell surface substantially opposite the first cell surface. The battery module also includes a heat sink integral with the housing and a thermally conductive adhesive bonded to the second cell surface and a heat sink surface that is facing the second cell surface. The thermally conductive adhesive can include a bonding shear strength and bonding tensile strength between the electrochemical cell and the heat sink of between approximately 5 megaPascals (MPa) and 50 MPa.

Cell to heat sink thermal adhesive

The present disclosure provides a battery pack including a housing, wherein the housing has a bottom portion and side walls extending upward around a periphery of the bottom portion; an upper portion opening is formed at top ends of the side walls extending upward; an upper cover is mounted on the upper portion opening of the housing; and the battery pack comprises: multiple flat battery cells; and a first end plate and a second end plate, wherein when the multiple battery cells are sequentially arranged and mounted into the housing from the upper portion opening, the first end plate and the second end plate are located at two end sides of the sequentially arranged multiple battery cells to laterally fix the sequentially arranged multiple battery cells. The two end plates may absorb deformation of the battery cell while expanding.

Battery pack with two end plates

The present disclosure provides a battery pack for a hybrid vehicle. The battery pack includes: multiple battery cells, a housing, a first end plate, a second end plate, a bearing plate and an upper cover, wherein the housing is provided with a bottom portion and side walls extending from the periphery of the bottom portion and forming an upper portion opening; the housing is configured for accommodating the multiple battery cells and the two end plates, when the multiple battery cells are sequentially arranged and mounted into the housing, the first end plate and the second end plate are located at two end sides of the sequentially arranged multiple battery cells to laterally fix the multiple battery cells; the bearing plate is mounted above the top portions of the multiple battery cells; and the upper cover is mounted above the housing to cover the upper portion opening of the housing.

Battery pack

A prismatic lithium ion battery cell includes a packaging having a cover. The cover includes: a first spiral disk feature disposed below a first terminal pad; a second spiral disk feature disposed below a second terminal pad; a first reversal disk disposed below the first spiral disk feature; and a second reversal disk disposed below the second spiral disk feature. The first and second reversal disks are configured to deflect upwards to displace the first and second spiral disk features to contact the first and second terminal pads, respectively, in response to a pressure within the packaging being greater than a predefined pressure threshold and form an external short-circuit between the first and second terminal pads via the first and second spiral disk features. Subsequently, a portion of the power assembly fails in response to the external short-circuit and interrupts current flow between the first and second terminal pads.

Overcharge protection systems having dual spiral disk features for prismatic lithium ion battery cells

A prismatic lithium ion battery cell includes a packaging having a cover. A power assembly disposed within the packaging has a first (e.g., negative) side and a second (e.g., positive) side. A terminal pad is electrically coupled to the first side, while the cover is electrically coupled to the second side, of the power assembly. The cover includes a spiral disk feature disposed below the terminal pad and a reversal disk disposed below the spiral disk feature. The reversal disk is configured to deflect upwards to displace the spiral disk feature to contact the terminal pad in response to a pressure within the packaging being greater than a first predefined pressure threshold, forming an external short-circuit between the first and second sides of the power assembly. Subsequently, a portion of the power assembly fails in response to the external short-circuit and interrupts current flow within the power assembly.

Overcharge protection systems for prismatic lithium ion battery cells with biased packaging

Growing community of inventors

Milwaukee, WI, United States of America

Xugang Zhang