San Diego, CA, United States

Maxwell Technologies

maxwell.com
San Diego, CA, United States

Maxwell Technologies is a developer and manufacturer headquartered in San Diego, California. The company focuses on developing and manufacturing energy storage and power delivery solution-related products for automotive, heavy transportation, renewable energy, backup power, wireless communications and industrial and consumer electronics applications as well as for radiation-hardened microelectronic components and systems for satellites and spacecraft. Wikipedia.

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An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode, where the anode comprises a first lithium, ion intercalating carbon component and a. second lithium ion intercalating carbon component. The first lithium ion intercalating carbon component can include hard carbon, and the second lithium ion intercalating component can include graphite or soft carbon. A ratio of the hard carbon to the graphite or of the hard carbon to the soft carbon can be between 1 : 19 to 19: 1. The anode may comprise a first lithium ion intercalating carbon component, a second lithium ion intercalating carbon component and a third lithium ion intercalating carbon component. The first, lithium ion intercalating carbon component can include hard carbon, the second lithium ion intercalating carbon component can include soft carbon, and the third lithium ion intercalating carbon component can include graphite.


Patent
Maxwell Technologies | Date: 2017-01-18

Methods and apparatus are provided for a high voltage capacitor having a plurality of capacitor units connected in electrical series in a stacked configuration. An insulator element can be positioned between two adjacent capacitor units of the high voltage capacitor for providing separation between the adjacent capacitor units, where the insulator element has a first thickness at a first end of the insulator element and a second smaller thickness at a second end of the insulator element. The insulator element can have a wedge-shaped cross section.


Patent
Maxwell Technologies | Date: 2017-03-01

This disclosure provides systems, methods and apparatus for a engine start system. In one aspect, the engine start system includes: a booster battery selectively connected in parallel with the primary batteries of the engine. The booster battery is disconnected when the battery voltage of the primary batteries is below a first target voltage. The booster battery is connected when the battery voltage of the primary batteries is at or above the second target voltage, or in response to an external input.


Patent
Maxwell Technologies | Date: 2017-02-22

An energy storage device can include a cathode and an anode, where at least one of the cathode and the anode are made of a polytetrafluoroethylene (PTFE) composite binder material including PTFE and at least one of polyvinylidene fluoride (PVDF), a PVDF copolymer, and poly(ethylene oxide) (PEO). The energy storage device can be a lithium ion battery, a lithium ion capacitor, and/or any other lithium based energy storage device. The PTFE composite binder material can have a ratio of about 1:1 of PTFE to a non-PTFE component, such a PVDF, PVDF co-polymer and/or PEO.


Patent
Maxwell Technologies | Date: 2017-01-18

A method of fibrillizing a fibrillizable binder component of an electrode film can include providing a negatively charged fibrillizable binder component, and applying an electric field upon the negatively charged binder component to fibrillize the negatively charged fibrillizable binder component. A system for fibrillizing a binder component of an electrode film can include a mixing container made of a material having an affinity to donate electron(s) to the binder component, and an actuator configured to apply a force upon the mixing container so as to contact the mixing container with the binder component and to move the mixing container and the binder component relative to each other within a speed and range of motion sufficient to create an electrostatic force on the binder component and fibrillize the binder component.


Patent
Maxwell Technologies | Date: 2016-12-09

Dry process based energy storage device structures and methods for using a dry adhesive therein are disclosed.


Patent
Maxwell Technologies | Date: 2017-02-15

An energy storage apparatus can include a plurality of energy storage sub-modules adjacent one another, each of the plurality of energy storage sub-modules including a plurality of prismatic energy storage devices positioned on a carrying tray. An insulator sleeve can surround the plurality of prismatic energy storage devices positioned on the carrying tray and a pair of side plates positioned around the insulator sleeve. A first of the pair of side plates can be placed adjacent a first side of the insulator sleeve and a second of the pair of side plates can be placed adjacent a second opposing side of the insulator sleeve, where at least one of the pair of side plates has a plurality of protrusions distributed across an exterior surface. An air flow generator can be at a distal end of the energy storage apparatus and configure to draw air into and propel air flow through the energy storage apparatus.


Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: GV-5-2014 | Award Amount: 4.57M | Year: 2015

The SilverStream project addresses the challenges associated with sustainable and affordable personal mobility for the growing and ageing population in congested European cities. The project combines both ergonomic concepts conceived for elderly people and advanced automotive technologies that are quiet, clean, energy efficient and safe. The particular objectives of SilverStream are: i) specifications related to the needs of urban and ageing population; ii) enhanced vehicle manoeuvrability for urban context; iii) sustainable ergonomics, health monitoring and adaptive HMI for minimum-fatigue vehicle operation; iv) dual voltage 12/48 V power network for modular and scalable E/E architecture; v) hybrid energy storage system for extended operating life and increased efficiency; vi) compact in-wheel drive units for light urban mobility solutions; and vii) maximizing project impact for enhanced European competitiveness. To achieve these objectives, the SilverStream project brings together 10 committed and complementary European partners that cover the whole value chain, including SMEs, large industry, academia and research institutes. The developed technologies will be driven by a team of expert in the field of medical and cognitive science domain through a top/down approach, and will be demonstrated with a vehicle prototype running in a realistic test environment. In conclusion, SilverStream will develop and demonstrate a radically new light and affordable vehicle concept (L-category). In doing so, SilverStream provides one possible mobility solution to address the tough challenges faced by Europe in relation to the field of air quality, noise and environmental protection, traffic congestion, competiveness and jobs preservation, as outlined in the specific challenge of the work programme.


Patent
Maxwell Technologies | Date: 2016-12-07

A device (1) monitors and/or balances an ultracapacitor (3) and/or a module (4) comprising a plurality of ultracapacitors (3) connected in series, the module (4) being connectable in series or in parallel with other modules (4). The device comprises an electronic board (2) comprising digital control and/or command means, such as a microcontroller (5), executing a program for monitoring and balancing the ultracapacitor (3) and/or the module (4). The relative capacitances of the capacitors are measured, and this information is employed to determine when to carry out a controlled discharge of particular capacitors. Temperature information is also employed to determine when to carry out a controlled discharge of particular capacitors. In this way the lifetime of any particular capacitor is, desirably, extended to be no shorter than the lifetime of other longer-lived capacitors in the module.


Patent
Maxwell Technologies | Date: 2016-04-08

This disclosure provides systems, methods and apparatus for a combustion engine start system. In one aspect, the combustion engine start system includes a capacitor system and a controller configured to detect a battery voltage of an output of a battery system and receive an external input, wherein the controller is programmed to upon receiving the external input, if the battery voltage is below a first voltage threshold, connect an output of the capacitor system to the output of the battery system such that the battery voltage increases to a value that is at or above the first voltage threshold and below a second voltage threshold.

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