Skip to Main Content U.S. Department of Energy
Energy Storage

Vehicle Energy Storage Patents

2018

  • U.S. Patent No. 9,865,900, Issued Jan. 9, 2018.
    Solid electrolyte interphase film-suppression additives
    Abstract:An energy storage device comprising: (A) an anode comprising graphite; and (B) an electrolyte composition comprising: (i) at least one carbonate solvent; (ii) an additive selected from CsPF6, RbPF6, Sr(PF6)2, Ba(PF6)2, or a mixture thereof; and (iii) a lithium salt.

2017

  • U.S. Patent No. 9,722,277, Issued Aug. 1, 2017.
    Electrolyte for batteries with regenerative solid electrolyte interface
    Abstract: An energy storage device comprising an anode and a solute-containing electrolyte composition wherein the solute concentration in the electrolyte composition is sufficiently high to form a regenerative solid electrolyte interface layer on a surface of the anode only during charging of the energy storage device, wherein the regenerative layer comprises at least one solute or solvated solute from the electrolyte composition.
  • U.S. Patent No. 9,577,250, Issued Feb. 21, 2017.
    Thick Electrodes Including Nanoparticles having Electroactive Materials and Methods of Making Same
    Abstract: Electrodes having nanostructure and/or utilizing nanopar­ticles of active materials and having high mass loadings of the active materials can be made to be physically robust and free of cracks and pinholes. The electrodes include nano­particles having electroactive material, which nanoparticles are aggregated with carbon into larger secondary particles. The secondary particles can be bound with a binder to form the electrode.

2016

  • U.S. Patent No. 9,444,096, Issued Sep. 13, 2016.
    Organometallic-inorganic hybrid electrodes for lithium-ion batteries
    Abstract: Disclosed are embodiments of active materials for organometallic and organometallic-inorganic hybrid electrodes and particularly active materials for organometallic and organometallic-inorganic hybrid cathodes for lithium-ion batteries. In certain embodiments the organometallic material comprises a ferrocene polymer.
  • U.S. Patent No. 9,406,960, Issued Aug. 2, 2016.
    Energy storage systems having an electrode comprising LixSy
    Abstract: Improved lithium-sulfur energy storage systems can utilizes LixSy as a component in an electrode of the system. For example, the energy storage system can include a first electrode current collector, a second electrode current collector, and an ion-permeable separator separating the first and second electrode current collectors. A second electrode is arranged between the second electrode current collector and the separator. A first electrode is arranged between the first electrode current collector and the separator and comprises a first condensed-phase fluid comprising LixSy. The energy storage system can be arranged such that the first electrode functions as a positive or a negative electrode.
  • U.S. Patent No. 9,343,736, Issued May. 17, 2016.
    Lithium compensation for full cell operation
    Abstract: Disclosed herein are embodiments of a lithium-ion battery system comprising an anode, an anode current collector, and a layer of lithium metal in contact with the current collector, but not in contact with the anode. The lithium compensation layer dissolves into the electrolyte to compensate for the loss of lithium ions during usage of the full cell. The specific placement of the lithium compensation layer, such that there is no direct physical contact between the lithium compensation layer and the anode, provides certain advantages.

2015

  • U.S. Patent No. 9,184,436, Issued Nov. 10, 2015.
    Methods and Energy Storage Devices Utilizing Electrolytes Having Surface-Smoothing Additives
    Abstract: Electrodeposition and energy storage devices utilizing an electrolyte having a surface-smoothing additive can result in self-healing, instead of self-amplification, of initial protuber­ant tips that give rise to roughness and/or dendrite formation on the substrate and anode surface. For electrodeposition of a first metal (Ml) on a substrate or anode from one or more cations of Ml in an electrolyte solution, the electrolyte solu­tion is characterized by a surface-smoothing additive contain­ing cations of a second metal (M2), wherein cations of M2 have an effective electrochemical reduction potential in the solution lower than that of the cations of Ml.
  • U.S. Patent No. 8,980,460, Issued Mar. 17, 2015.
    Methods and Electrolytes for Electrodeposition of Smooth Films
    Abstract: Electrodeposition involving an electrolyte having a surface­smoothing additive can result in self-healing, instead of self­amplification, of initial protuberant tips that give rise to roughness and/or dendrite formation on the substrate and/or film surface. For electrodeposition of a first conductive mate­rial (Cl) on a substrate from one or more reactants in an electrolyte solution, the electrolyte solution is characterized by a surface-smoothing additive containing cations of a sec­ond conductive material (C2), wherein cations of C2 have an effective electrochemical reduction potential in the solution lower than that of the reactants.

Energy Storage

Program Areas

Resources