Ses Holdings Pte. Ltd.

Mackenzie King

Qichao Hu

Arunkumar Tiruvannamalai

Hong Gan

Yongkyu Son

Jacqueline Hong

Jody Klaassen

Robert L Graves

Yury Matulevich

SangOh Jung

Takashi Hakari

Leran Zou

Arthur R Nigro, Jr

Jeff Francois

YoungGyu Nam

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

Battery core packs employing minimum cell-face pressure containment devices and methods are disclosed for minimizing dendrite growth and increasing cycle life of metal and metal-ion battery cells.

Rechargeable battery

Alkali metal secondary batteries that include anodes constructed from alkali metal foil applied to only one side of a porous current collector metal foil. Openings in the porous current collectors permit alkali metal accessibility on both sides of the anode structure. Such anode constructions enable the utilization of lower-cost and more commonly available alkali metal foil thickness, while still achieving high cell cycle life at a significantly reduced cost. Aspects of the present disclosure also include batteries with porous current collectors having increased volumetric and gravimetric energy densities, and methods of manufacturing anodes with porous current collectors.

Anode, secondary battery including the same, and the method of making anode

Anodes, secondary batteries including the same, and methods of making anodes

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.

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

Aspects of the present disclosure include control systems for controlling secondary lithium metal batteries and for controlling electric devices powered, at least in part, thereby, that enable access to reserve energy stored in the lithium metal battery that is not typically available during normal operation. In some examples, the control systems provide access to the reserve energy in response to an emergency, such as requiring excess energy to power an electric device to a safe location.

Growing community of inventors

Essex, MA, United States of America

Mackenzie King