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The award-winning Phase Change Matters blog tracks the latest news and research on phase change materials and thermal energy storage. E-mail tips and comments to Ben Welter, communications director at Entropy Solutions. Follow the blog on Twitter at @PureTemp. Subscribe to the weekly PCM newsletter. Or join the discussion on LinkedIn.

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Patent application: Thermal energy storage systems

Ben Welter - Monday, October 29, 2018

PCES TES patent drawing

U.S. patent application 20180283800 (applicant Phase Change Energy Solutions Inc., Asheboro, N.C.):

"In one aspect, thermal energy storage systems are described herein. In some embodiments, a thermal energy storage system comprises a thermal energy storage system comprising a container and a heat exchange apparatus disposed within the container. The heat exchange apparatus comprises a tank, a manifold at least partially disposed within the tank, and a phase change material disposed within the tank and in thermal contact with the manifold."

http://www.freepatentsonline.com/20180283800.pdf

Patent application: Battery module and use of a propagation protection element

Ben Welter - Monday, October 29, 2018

U.S. patent application 20180309177 (applicant Robert Bosch GmbH, Stuttgart, Germany):

"A battery module comprising at least one battery cell, wherein the battery module further comprises a propagation protection element which is connected in a thermally conductive manner to the battery cell and which is designed in such a way that, when a specific value for a temperature of the at least one battery cell is exceeded, an endothermic process which is being executed within the propagation protection element absorbs heat which is given off by the at least one battery cell."

http://www.freepatentsonline.com/20180309177.pdf

Patent application: Enhanced thermally conductive cushioning foams

Ben Welter - Monday, October 22, 2018

U.S. patent application 20180298264 (applicant Peterson Chemical Technology LLC, Austin, Texas):

"Methods and combinations for making and using one or more thermally conductive cellular foam layers and other structures comprising flexible cellular foam and metallic material particulates, and said thermally-conductive cellular foam layers may be located on, under, or in cushioning foams and mattresses or placed between on, under, within, or between other layering substrates, columns, and other structures to increase the overall cooling capability of the composite. The thermally conductive foam may be used in mattresses, pillows, bedding products, seat cushions, medical cushioning foams, pet beds, and similar materials used in bedding and comfort products."

http://www.freepatentsonline.com/20180298264.pdf

Patent application: Flexible phase change material composite for thermal management systems

Ben Welter - Monday, October 22, 2018

U.S. patent application 20180298261 (applicant AllCell Technologies, Chicago, Ill.):

"A thermal management composite, comprising a phase change material within a carbon or graphite matrix. The matrix is coated with a polymer coating to improve flexibility. The matrix can be a molded carbon or graphite material or a carbon or graphite cloth."

http://www.freepatentsonline.com/20180298261.pdf

Patent application: Personal cooling device with PCM

Ben Welter - Friday, October 12, 2018

U.S. patent application 20180289531 (applicant Relief Technologies Inc., San Francisco, Calif.):

Relief Technologies patent drawing"A cooling device includes a package substrate, a plurality of cooling units, and device electronics. The plurality of cooling units are configured to cool a user's body. Each cooling unit includes a plurality of semiconductor cooling elements sandwiched between a first cooling unit substrate and a second cooling unit substrate. Each of the cooling units is connected to the package substrate. The device electronics are coupled to the cooling units. The device electronics are configured to store a first cooling device profile that includes data indicating an amount of power to deliver to each of the cooling units over a period of time. The device electronics are configured to deliver power to the cooling units according to the first cooling device profile, wirelessly receive a second cooling device profile from an external computing device, and deliver power to the cooling units according to the second cooling device profile."

http://www.freepatentsonline.com/20180289531.pdf

Patent application: Cooling circuit and method on a vehicle

Ben Welter - Friday, October 12, 2018

U.S. patent application 20180291798 (applicant Hutchinson SA, Paris, France):

"A temperature management system on a vehicle cooling circuit using a heat transfer liquid, the circuit comprising a path for circulating the liquid and, arranged on the path: in series, a means for circulating the liquid along the path, an engine for moving the vehicle, whose components are to be placed in a heat exchange relationship with the liquid, and a heat exchanger having an inlet and an outlet for said liquid in order to place this liquid in a heat exchange relationship with another fluid within the exchanger, mounted on a first leg, between the inlet and the outlet of the heat exchanger, a heat store into which said liquid can enter and from which it can exit, and valves positioned so that liquid arriving from the engine flows toward the heat exchanger and/or the heat store, the heat store being a latent heat storage and thermal energy release unit containing at least one volume: enclosing elements made of phase change material (PCM) for storing and releasing the thermal energy contained in said liquid in view of a heat exchange with this liquid (9), and around which is installed a thermal barrier comprising at least one first layer containing a phase change material and which is surrounded by one second layer containing a porous thermally insulating material to thermally isolate said volume from the outside."

http://www.freepatentsonline.com/20180291798.pdf

Patent application: Insulating plastic foams based on polyolefins

Ben Welter - Thursday, October 11, 2018

U.S. patent application 20180291166 (applicant Qatar University, Doha, Qatar):

"A method of manufacturing an article or material, the method comprising: forming a blend composition, the blend composition comprising a polyolefin, a phase change material, and an optional cross-linking agent, and an optional additive material; executing an operation comprising cross-linking the polyolefin to form a cross-linked intermediate composition; executing an operation comprising foaming the cross-linked intermediate composition to form a foamed article or material."

http://www.freepatentsonline.com/20180291166.pdf

Patent application: Even carbon number paraffin composition

Ben Welter - Thursday, October 11, 2018

U.S. patent application 20180290946 (applicant REG Synthetic Fuels LLC, Ames, Iowa):

"Paraffin compositions including mainly even carbon number paraffins, and a method for manufacturing the same, is disclosed herein. In one embodiment, the method involves contacting naturally occurring fatty acid/glycerides with hydrogen in a slurry bubble column reactor containing bimetallic catalysts with equivalent particle diameters from about 10 to about 400 micron. The even carbon number compositions are particularly useful as phase change material."

http://www.freepatentsonline.com/20180290946.pdf

Patent application: Protective gear and operating control method thereof

Ben Welter - Thursday, October 11, 2018

U.S. patent application 20180290044 (applicant Boe Technology Group Co. Ltd., Beijing, China):

Boe patent drawing"Protective gears and operating control methods thereof are provided. The protective gear includes at least one impact-resistant pad, containing a phase-change material and capable of at least partially wrapping a protected area; a phase-change controller, including a heating device and a cooling device configured to control the phase-change material; and a control circuit, configured to send a signal to the phase-change controller to control the phase-change material to be in a solid phase state after detecting a fall-down of the protected area, and send another signal to the phase-change controller to control the phase-change material to be in a liquid phase state after detecting an un-fall-down of the protected area."

http://www.freepatentsonline.com/20180290044.pdf