Bayerische Motoren Werke Aktiengesellschaft

University of California

Simon Lux

Ann-Christin Gentschev

Gao Liu

Isaac Lund

Hui Zhao

Max Von Groll

Pascal Viala

Thorsten Langer

Zhe Jia

Sebastian Scharner

Robert Kostecki

Thomas J Richardson

Barbara Stiaszny

Sebastian Kaluza

Jakub Reiter

Juliane Kluge

Philipp Oberhumer

Michelle Bogen

Tianyue Zheng

Ulrike Boesenberg

Elad Pollak

Odysseas Paschos

A charging device for charging the electrochemical energy accumulator has a first circuit which is or can be coupled electrically to the electrochemical energy accumulator. A heating device for heating the electrochemical energy accumulator has a second circuit, separate from the first circuit, having an induction heating element which can be heated inductively by an external magnetic alternating field and which is or can be coupled thermally to the electrochemical energy accumulator.

Apparatus, system, and method for charging an energy accumulator, and vehicle

Vehicles and methods for cooling a cabin using a cold roof of the vehicle are provided. The vehicle includes a roof, a cabin, and an insulation layer disposed between the roof and the cabin. The vehicle also includes a passage that fluidly couples the roof with the cabin. The passage is switchable between an open mode and a closed mode. The passage is switched between the open mode and the closed mode depending on a relationship between a roof temperature, a cabin temperature, and/or a threshold temperature. The passage may be formed through the insulation layer or extend outside of the insulation layer fluidly coupling the roof with the cabin.

Vehicles and methods for cooling a cabin using a cold roof

A test device for an electrochemical cell is arranged inside the electrochemical cell in such a way that it is in electrical contact with two current-carrying electrodes of the electrochemical cell. The test device includes a switching device having at least one cathode and one anode partial electrode which are adjacently arranged, but with a space thereinbetween. In an initial state, the switching device is opened such that electrical current cannot flow between the partial electrodes. The switching device is closed in a short-circuit state by bridging the space between the partial electrodes such that an electrical current can flow between the current-carrying electrodes of the electrochemical cell and through the partial electrodes.

Test device for an electrochemical cell, module comprising a test device, and method for testing an electrochemical cell

A composite electrode prepared from silicon-graphene material and conductive polymer binder poly (1-pyrenemethyl methacrylate-co-methacrylic acid) for use in lithium-ion batteries.

Conductive polymer binder for a novel silicon/graphene anode in lithium ion batteries

A lithium-sulfur battery which includes an electrolyte containing lithium-ions, an anode and a cathode containing sulfur. The lithium-sulfur battery also contains a surface layer which is arranged between the anode and the cathode. The lithium-sulfur battery further includes areas on the cathode side which contain polysulfides. The surface layer of the lithium-sulfur battery contains at least one graphene layer which is permeable to lithium ions and impermeable to polysulfides.

Lithium-sulfur accumulator

A battery module having a controllable external heat sink and methods of operating the battery module are provided. According to an aspect of the invention, the battery module includes a battery cell, an external circuit connected to the battery cell, and a controller that controls the external circuit. The external circuit includes a first switch and a heat sink. If an internal short circuit within the battery cell is detected, the controller closes the first switch in order to generate heat in the heat sink.

Battery module with a controllable external heat sink

A composite electrode prepared from silicon-graphene material and conductive polymer binder poly (1-pyrenebutyl methacrylate-co-methacrylic acid) for use in lithium-ion batteries.

A lithium (Li) ion battery comprising a cathode, a separator, an organic electrolyte, an anode, and a carbon black conductive additive, wherein the carbon black has been heated treated in a COgas environment at a temperature range of between 875-925 degrees Celsius for a time range of between 50 to 70 minutes to oxidize the carbon black and reduce an electrochemical reactivity of the carbon black towards the organic electrolyte.

Growing community of inventors

Oakland, CA, United States of America

Simon Lux