Wilson Greatbatch Ltd.

Wilson Greatbatch Technologies, Inc.

Greatbatch Ltd.

Ses Holdings Pte. Ltd.

Enevate Corporation

Wilson Greatbach, Ltd.

Hong Gan

Esther S Takeuchi

Robert S Rubino

Qichao Hu

Benjamin Yong Park

Barry C Muffoletto

Esther S Takuchi

Kenneth C Syracuse

Noelle M Waite

Heidi Leighette Anderson

Sung Won Choi

Mark J Roy

Joseph M Lehnes

Mackenzie King

Ashish Shah

David M Spillman

Sally Ann Smesko

Marcus J Palazzo

Joseph M Prinzbach

Arunkumar Tiruvannamalai

Steven Davis

Takashi Hakari

Leran Zou

Dominick J Frustaci

Gary Freitag

Randolph A Leising

Paul T Hallifax

Rajendra P Singh

William M Paulot

Weibing Xing

Michael Guidi

Paul W Krehl

Yuemin Zhang

Susan L Clare

Donald Kaiser

S Esther Takeuchi

Paul Krehl

Steven M Davis

Gary L Freitag

An energy storage device comprising a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode comprises a self-supporting composite material film, a separator between the first electrode and the second electrode, and an electrolyte in contact with the first electrode, the second electrode, and the separator, wherein the electrolyte comprises at least one of a fluorine-containing cyclic carbonate, a fluorine-containing linear carbonate, and a fluoroether. The composite material film having greater than 0% and less than about 90% by weight of silicon particles, and greater than 0% and less than about 90% by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases can be a substantially continuous phase that holds the composite material film together such that the silicon particles are distributed throughout the composite material film.

Electrolyte compositions for batteries

Localized high-salt-concentration electrolytes each containing a salt, a glyme as a solvent, and a fluorinated diluent. In some embodiments, the glyme has a chemical formula R—(O—CH—CH)—O—R, wherein n=1 to 4 and at least one of Rand Ris a hydrocarbon sidechain having at least 2 carbon atoms and wherein the salt is soluble in the glyme. In some embodiments, the fluorinated diluent is selected from the group consisting of a fluorinated glyme and a fluorinated ether. In some embodiments, the salt includes an alkali-metal salt. In some embodiments, the salt includes an alkali-earth-metal salt. The salt may include a perfluorinated sulfonimide salt. Electrochemical devices that include localized high-salt-concentration electrolytes of the present disclosure are also disclosed.

Localized high-salt-concentration electrolytes containing longer-sidechain glyme-based solvents and fluorinated diluents, and uses thereof

Processes for producing a N,N-dialkyl perfluoroalkyl-sulfonamide product of the formula R&#x2014;S(O)&#x2014;NRR(I) in which Rrepresents fully or partially fluorinated alkyl groups with carbon 1 to 12 and Rand Rrepresents linear or branched or cyclic alkyl, alkene or alkyne groups with carbon 1 to 12, wherein R=Ror R&#x2260;R. In some embodiments, a reaction proceeds by contacting a perfluoroalkylsulfonyl halide of the formula: X&#x2014;S(O)&#x2014;R, (II), in which X represents F, Cl, Br or I, with dialkylamine of the formula HNRR, under conditions sufficient to produce the desired N,N-dialkyl perfluoroalkylsulfonamide product of Formula I. In some embodiments, the reaction is carried out using a solvent of Formula I.

Processes for producing high-purity N,N-dialkyl perfluoroalkylsulfonamide

Localized high-salt-concentration electrolytes each containing a salt, a glyme as a solvent, and a fluorinated diluent. In some embodiments, the glyme has a chemical formula R&#x2014;(O&#x2014;CH&#x2014;CH)&#x2014;O&#x2014;R, wherein n=1 to 4 and at least one of Rand Ris a hydrocarbon sidechain having at least 2 carbon atoms and wherein the salt is soluble in the glyme. In some embodiments, the fluorinated diluent is selected from the group consisting of a fluorinated glyme and a fluorinated ether. In some embodiments, the salt includes an alkali-metal salt. In some embodiments, the salt includes an alkali-earth-metal salt. The salt may include a perfluorinated sulfonimide salt. Electrochemical devices that include localized high-salt-concentration electrolytes of the present disclosure are also disclosed.

An energy storage device comprising a first electrode and a second electrode, a separator between the first electrode and the second electrode, and an electrolyte in contact with the first electrode, the second electrode, and the separator, wherein the electrolyte comprises at least one of a fluorine-containing cyclic carbonate, a fluorine-containing linear carbonate, and a fluoroether. The electrolyte may be substantially free of non-fluorine containing cyclic carbonates.

Aspects of the present disclosure include methods of charging secondary lithium metal batteries that include selectively and intentionally overcharging the battery to activate redox shuttling additives in order to reactivate dead lithium. Aspects of the present disclosure also include control systems for determining when to initiate a lithium reactivation charging process and for determining one or more parameters of a lithium reactivation charging protocol.

Methods of charging secondary lithium metal batteries to reactive dead lithium with redox shuttling additives and battery control systems incorporating the same

An energy storage device includes a first electrode and a second electrode, a separator between the first electrode and the second electrode, and an electrolyte in contact with the first electrode, the second electrode, and the separator. The electrolyte includes at least one of a fluorine-containing cyclic carbonate, a fluorine-containing linear carbonate, and a fluoroether. At least one of the first electrode and the second electrode includes a self-supporting composite material film. The composite material film has greater than 0% and less than about 90% by weight of silicon particles, and greater than 0% and less than about 90% by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases can be a substantially continuous phase that holds the composite material film together such that the silicon particles are distributed throughout the composite material film.

The present invention related to an electrochemical cell comprising an anode of a Group IA metal and a cathode of a composite material prepared from a combination of vanadium oxide and either a copper or a silver oxide and the other of a copper or a silver nitrate. The cathode material of the present invention provides an increased gravimetric energy density over the cathode active materials of the prior art along with an increased pulse voltage delivery capacity. This makes the cathode material of the present invention particularly useful for implantable medical applications.

Copper doped SVO compounds as high rate cathode materials

The traditional method of pressing CF, screen and SVO sheet assembly results in an electrode that is cupped and not flat. This results in the reduction of the effective volumetric energy density of the electrode or the addition of a process step of flattening of the cathode if at all possible. The new method of assembly effectively eliminates the cupping behavior and produces a flat electrode. In addition, the physical density of the cathode is also increased.

Flat and high-density cathodes for use in electrochemical cells

A new cathode design having a first cathode active material of a relatively low energy density but of a relatively high rate capability contacted to one side of a current collector and a second cathode active material having a relatively high energy density but of a relatively low rate capability contacted to the opposite side thereof is described. A preferred cathode is: SVO/current collector/CFwith the CFfacing a lithium anode body devoid of a screen-type current collector. The lithium anode is either supported directly on the inner casing sidewall or is contacted to a relatively small strip of metal devoid of perforations and serving as an anode current collector electrically connected to the negative terminal.

Screen-less anode design concepts for low cost lithium electrochemical cells for use in implantable medical device applications

The current invention describes a lithium/carbon monofluoride (Li/CF) cell capable of delivering sufficient power to supply an ICD or similar demanding device. The cell exhibits the typical excellent long-term stability and predictability of the CFsystem, as well as its high energy density (greater than about 300 Ah/cc, greater than about 600 Wh/cc). Additionally, the cell is capable of delivering about 0.5 W/cc of cathode volume for greater than 5 seconds with a voltage above 1.70 V (FIG.). The following invention embodiments can be applied individually or in conjunction with each other.

Lithium/fluorinated carbon cell for high-rate pulsatlie applications

Method for making flat and high-density cathode for use in electrochemical cells

A new design for a cathode having a configuration of: SVO/first current collector/CF/second current collector/SVO is described. The two cathode current collectors are vertically aligned one on top of the other in a middle region or zone of the cathode. This coincides to where a winding mandrel will be positioned to form a wound electrode assembly with an anode. The overlapping region of the two current collectors helps balance the expansion forces of the exemplary SVO and CFactive material layers. This, in turn, helps maintain a planar cathode that is more amenable to downstream processing. The use of two current collectors on opposite sides of an intermediate cathode active material also provides for enhanced reliability when cathodes are wound from the center as they lend structural integrity to outer portions of the wind.

Sandwich cathode electrochemical cell with wound electrode assembly

An electrochemical cell comprising a lithium anode, a cathode comprising a blank cut from a free-standing sheet of a silver vanadium oxide mixture contacted to a current collector. The active material has having a relatively lower surface area and an electrolyte activating the anode and the cathode is described. By optimizing the cathode active material surface area in a SVO-containing cell, the magnitude of the passivating film growth at the solid-electrolyte interphase (SEI) and its relative impermeability to lithium ion diffusion is reduced. Therefore, by using a cathode of an active material in a range of from about 0.2 m/gram to about 2.6 m/gram, and preferably from about 1.6 m/gram to about 2.4 m/gram, it is possible to eliminate or significantly reduce undesirable irreversible Rdc growth and voltage delay in the cell and to extend its useful life in an implantable medical device.

Control of silver vanadium oxide surface areas as a means of controlling voltage delay and Rdc growth in an electrochemical cell

An electrochemical cell comprising a lithium anode, a silver vanadium oxide cathode having a relatively lower basis weight, and an electrolyte activating the anode and the cathode is described. By limiting the amount of cathode active material per unit area (i.e. basis weight) facing the anode in the Li/SVO cell, the magnitude of the passivating film growth at the solid-electrolyte interphase (SEI) and its relative impermeability to lithium ion diffusion is reduced. Therefore, by using a cathode of a relatively low basis weight active material, it is possible to eliminate or significantly reduce undesirable irreversible Rdc growth and voltage delay in the cell and to extend its useful life in an implantable medical device.

Method of controlling voltage delay and RDC growth in an electrochemical cell using low basis weight cathode material

Growing community of inventors

Williamsville, NY, United States of America

Hong Gan