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A123 Systems Llc patents

Recent patent applications related to A123 Systems Llc. A123 Systems Llc is listed as an Agent/Assignee. Note: A123 Systems Llc may have other listings under different names/spellings. We're not affiliated with A123 Systems Llc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | A123 Systems Llc-related inventors

System and method for assessing voltage threshold detecting circuitry within a battery pack

Systems and methods for assessing voltage threshold detection circuitry of individual battery cells within a battery pack supplying power to a vehicle are disclosed. One example system comprises, a plurality of battery cells within a battery pack, a plurality of voltage threshold detecting circuits detecting voltage of the plurality of battery cells, a voltage of a first battery cell of the plurality of battery cells coupled to a first voltage threshold detecting circuit of the plurality of voltage threshold detecting circuits, and a network that selectively couples a second battery cell to the first voltage detecting circuit while the first battery cell is coupled to the first voltage detecting circuit.. ... A123 Systems Llc

System and method for monitoring and balancing voltage of individual battery cells within a battery pack

Systems and methods for a scalable battery controller are disclosed. In one example, a circuit board coupled to a battery cell stack is designed to be configurable to monitor and balance battery cells of battery cell stacks that may vary depending on battery pack requirements. ... A123 Systems Llc

Separator for electrochemical cell and method for its manufacture

An electrode/separator assembly for use in an electrochemical cell includes a current collector; a porous composite electrode layer adhered to the current collector, said electrode layer comprising at least electroactive particles and a binder; and a porous composite separator layer comprising inorganic particles substantially uniformly distributed in a polymer matrix to form nanopores and having a pore volume fraction of at least 25%, wherein the separator layer is secured to the electrode layer by a solvent weld at the interface between the two layers, said weld comprising a mixture of the binder and the polymer. Methods of making and using the assembly are also described.. ... A123 Systems Llc

High power electrode materials

An lfp electrode material is provided which has improved impedance, power during cold cranking, rate capacity retention, charge transfer resistance over the current lfp based cathode materials. The electrode material comprises crystalline primary particles and secondary particles, where the primary particle is formed from a plate-shaped single-phase spheniscidite precursor and a lithium source. ... A123 Systems Llc

Multivalent metal salts for lithium ion cells having oxygen containing electrode active materials

A material and method for a surface-treated electrode active material for use in a lithium ion battery is provided. The surface-treated electrode active material includes an ionically conductive layer comprising a multivalent metal present as a direct conformal layer on at least a portion of the outer surface of the electrode active material. ... A123 Systems Llc

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