Porotech Ltd.

Polyplus Battery Company, Inc.

Yury Mironovich Volfkovich

Igor Alexandrovich Blinov

Steven J Visco

Lutgard C De Jonghe

Vitaliy Nimon

Daniil Bograchev

Venedikt Venedictovich Kulbachevsky

Aleksandrs V Sakars

Valentin Evseevich Sosenkin

Electrochemical energy storage devices, such as alkali metal-oxygen battery cells (e.g., non-aqueous lithium-air cells), have a cathode architecture with a porous structure and pore composition that is tailored to improve cell performance, especially as it pertains to one or more of the discharge/charge rate, cycle life, and delivered ampere-hour capacity. A porous cathode architecture having a pore volume that is derived from pores of varying radii wherein the pore size distribution is tailored as a function of the architecture thickness is one way to achieve one or more of the aforementioned cell performance improvements.

Cathode architectures for alkali metal / oxygen batteries

A porosimetric device is disclosed for studies of physicochemical properties of materials, in particular for study of the pore structure. The device comprises a balance, a clamping device for keeping the standard and the porous sample(s) in contact (the standard and the porous sample(s) containing wetting liquid inside their pores), an automatic manipulator for moving the sample frames, several drying stations for drying a number of samples simultaneously, automatic flow-meter valves for the drying gas, electric and pneumatic drives for the manipulator and the valves. Each drying station is placed at sufficient distance from the balance thereby enabling heating of the samples without heating the balance. The drying process is carried out by gas, which is heated up in special heaters. The manipulator has two degrees of freedom. It can perform vertical movements for placing samples and standards on the balance as well as horizontal movement between the drying stations and the balance. The porosimeter includes a gripper for sample frames, vertical servo-drives for each drying station, which provide vertical positioning of the sample frames when gripped, and a cap or a cylinder closed from the top, which tightly covers each sample and standard before weighing, thereby essentially reducing the evaporation of measuring liquid or condensation of moisture within the sample pores.

Porosimetric device

A porosimeter for investigating physicochemical properties of materials and articles, in particular for investigation of a structure of porous bodies, including a scale, a clamping device for bringing into contact standard and test porous samples, the samples containing wetting liquid in its pores, and an automatic manipulator. The automatic manipulator includes a body, a frame, a motor connected with the frame by a transmission, the motor having pushers and a support. The clamping device for bringing the standard and test porous samples into contact with each other includes a drying device connected with the body, and yokes.

Porosimeter

Growing community of inventors

Moscow, Russia

Yury Mironovich Volfkovich