Robert Boschgmbh

Gs Yuasa International Ltd.

Calin Iulius Wurm

Thomas Wöhrle

Harald Bauer

Felix Eberle

Leonore Glanz

Vikram Anil Godbole

Bernd Schumann

Martin Tenzer

Thomas Woehrle

Rene Deponte

Oliver Gerundt

Hideki Ogihara

Anselm Berg

Markus Feigl

Bernd Reinsch

Wolfgang Weydanz

Ionut Marian Lica

Michael Raedler

Seyed Mohammad Seyed Abbassi

Rene Hornung

Georg Sebastian

Thomas Klemen

Harald Drings

Matthias Schroeder

Martin Manuel Hiller

Franz Fuchs

The invention relates to a method for producing an electrochemical cell comprising at least one porous electrode ('), the method comprising at least the following method steps: (a) providing an electrode composition in the form of a homogeneous mixture comprising (i) at least one particulate active material (); (ii) at least one particulate binder (); (iii) at least one particulate pore-forming agent (); and (iv) optionally at least one conducting additive (); (b) forming a mouldable mass from the electrode composition; (c) applying the electrode composition to at least one surface of a substrate () to obtain a compact electrode (); (d) producing an electrochemical cell comprising at least one compact electrode () which comprises the electrode composition according to method step (a); and (e) heating the at least one compact electrode () to liquefy the at least one particulate pore-forming agent (); and/or (f) bringing the compact electrode () into contact with at least one liquid electrolyte composition or at least one liquid constituent of an electrolyte composition for an electrochemical cell which is capable of at least partially dissolving the at least one particulate pore-forming agent () to obtain a porous electrode (), wherein method steps (a), (b), (c), (d) and (e) are carried out substantially without solvents.

Method for producing porous electrodes for electrochemical cells

The present invention relates to a separator arrangement () for an electrochemical battery cell () comprising an ionically conductive and electrically insulating separator layer (), characterized in that the separator arrangement () further comprises a reduction layer () comprising a reductant, wherein the reduction layer () has a specific surface area which is in a range of not less than 10 m/g, preferably of not less than 100 m/g, for example of not less than 1000 m/g, and wherein the reduction layer () is porous and has an open porosity in a range from not less than 10% to not more than 90%, preferably from not less than 30% to not more than 70%.

Separator for a battery cell and battery cell providing such a separator

The invention relates to a method for producing an electrode (E) for an electrochemical cell, in particular for a lithium cell. In order to produce a homogeneous mixture allowing the time-saving, cost-effective production, for example by dry coating, of an electrode (E) with improved properties and/or with a layer thickness significantly greater than 100 &#x3bc;m, for example for vehicle batteries, in particular for electric and/or hybrid vehicles, in said method at least one binder (B) and at least one particulate fibrillation auxiliary agent (F) are mixed in a mixing process with a high shear load, the at least one binder (B) being fibrillated (fB), and at least one electrode component (E) is then added to the at least one fibrillated binder (B) in a mixing process with a low shear load. The invention also relates to an electrode (E) produced in this manner and to an electrochemical cell equipped with an electrode (E) of this type.

Electrode production method by binder fibrillation using a particulate fibrillation auxiliary agent

An anode for a galvanic cell is constructed from an anode material containing a main component, which releases lithium ions during a discharge process of the galvanic cell, and at least one additive. The at least one additive has an electrochemical potential which is higher with respect to elemental lithium than an electrochemical potential of the main component with respect to elemental lithium. The at least one additive has a charging capacity and a discharging capacity, and the charging capacity does not deviate from the discharging capacity by more than 10%.

Composite anode for a galvanic cell and a galvanic cell

A cell module for lithium-ion batteries includes at least two lithium-ion cells, in particular lithium-ion battery cells, a cell module housing that has at least one lateral wall, and at least one electrical insulation between the cells. The electrical insulation is configured in one piece with the cell module housing.

Insulating of adjacent lithium-ion batteries by complete overmoulding/pouring of containers in a device

An electrode for an energy accumulator comprises a substrate, an active anode layer having an active anode material, the active anode material being at least partially a lithium, a lithium alloy and/or a lithium intercalation material, at least one lithium-ion-conducting layer having a material composition which gradually changes over a layer thickness and has at least one lithium-ion-conducting component. A method for forming an electrode for an energy accumulator, and a lithium-ion battery comprising an electrode are also disclosed.

Electrode for an energy accumulator and manufacturing method

A metal-oxygen battery system, in particular a lithium-oxygen battery system, includes at least one battery cell, in particular a lithium-oxygen cell, including an oxygen cathode, a metal anode, and a metal ion-conducting separator situated between the cathode and the anode. To increase the current carrying capacity, the battery system also includes a turbomachine system which is connected to the oxygen cathode in a gas-conducting manner and which may be switched over between a suction function and a blowing function, and/or an exhaust gas supply line for supplying a gas low in oxygen to the oxygen cathode. Also described is a corresponding operating method.

Metal-oxygen battery system having a suction function and a blowing function

A battery cell () comprising at least one electrode unit () having an anode (), a cathode () and a separator () which is arranged between the anode () and the cathode (). In this case, the separator () has an electrically conductive core layer () and at least one ionically permeable edge layer (). The invention also relates to a method for controlling ion flow within the battery cell (), wherein an electrical connection is established between the electrically conductive core layer () of the separator () and a current collector () of the anode () or a current collector () of the cathode ().

Battery cell and method for controlling ion flow within the battery cell

A lithium cell includes a negative electrode and a positive electrode. In order to increase the safety and service life of the cell, the cell also includes at least one porous protective layer arranged between the negative electrode and the positive electrode. The protective layer includes at least one alkaline-earth metal carboxylate.

Lithium cell having an alkaline-earth metal carboxylate separator

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Meitingen, Germany

Calin Iulius Wurm