University of California

Lg Energy Solution, Ltd.

South 8 Technologies, Inc.

University of Florida Research Foundation, Incorporated

Princeton University

Ying Shirley Meng

Wang Mo Jung

Chi Ho Jo

Cyrus Sam Rustomji

Yangyuchen Yang

Joseph Wang

Jungwoo Lee

Daniel Davies

Rajan Kumar

Jae Wook Shin

Lu Yin

Shyue Ping Ong

Minghao Zhang

Zhuoying Zhu

Erik Wu

Han Nguyen

Hyuk In Moon

Iek Heng Chu

Dong Hun Lee

Franky So

John Robert Reynolds

Jiangeng Xue

Daniel Artemis Steingart

Benjamin Hertzberg

Karl Robert Zawoy

Jeongbeom Lee

Greg Davies

Min Sang Song

Haodong Liu

Mylad Chamoun

Diyi Cheng

Thomas A Wynn

Hyeseung Chung

So-Yeon Ham

Danna Qian

Chengcheng Fang

Abhik Banerjee

Hye Seung Chung

A method for preparing a positive electrode active material and a positive electrode active material prepared thereby are provided. The method includes a first step of reacting a coating precursor preparation solution including a metal solution containing metal ions included in a coating layer and a chelating agent to prepare a coating precursor, which is a complex in which the metal ions and the chelating agent are combined, and a second step of dry-mixing particles having a specific composition and the coating precursor, followed by firing the mixture to form a coating layer having a specific composition on surfaces of the particles.

Positive electrode active material and method for preparing the same

Disclosed is a negative electrode for an all-solid-state battery and an all-solid-state battery including the negative electrode. More specifically, disclosed is a pre-lithiated silicon negative electrode, and an all-solid-state battery comprising the same.

All-solid-state battery comprising a pre-lithiated silicon negative electrode

Methods and articles of manufacture for free-standing lithium phosphorus oxynitride (LiPON) thin films are disclosed. The methods facilitate synthesizing the LiPON thin films in a free-standing form with controllable film thicknesses and areas. The free-standing LiPON thin films, absent a solid substrate contacting the LiPON thin films, enable studying fundamental properties of LiPON thin films including mechanical properties and glassy transition behavior. In some embodiments, the method includes modifying a surface of a substrate, forming a layer of LiPON on the modified surface of the substrate, and separating the layer of LiPON from the substrate. The free-standing LiPON thin films, no longer requiring solid substrates, may be used in applications requiring an ionically conductive or electronically insulating coating, film, or barrier layer.

Free-standing lithium phosphorus oxynitride think films and methods of their manufacture

Chemical additives are disclosed to increase solubility of salts in liquefied gas electrolytes.

Chemical formulations for electrochemical device

Presented are new, earth-abundant lithium superionic conductors, LiY(PS)and LiPSCl, that emerged from a comprehensive screening of the Li&#x2014;P&#x2014;S and Li-M-P&#x2014;S chemical spaces. Both candidates are derived from the relatively unexplored quaternary silver thiophosphates. One key enabler of this discovery is the development of a first-of-its-kind high-throughput first principles screening approach that can exclude candidates unlikely to satisfy the stringent Liconductivity requirements using a minimum of computational resources. Both candidates are predicted to be synthesizable, and are electronically insulating. Systems and methods according to present principles enable new, all-solid-state rechargeable lithium-ion batteries.

Lithium and sodium superionic conductors

Disclosed are compositions, devices, systems and fabrication methods for stretchable composite materials and stretchable electronics devices. In some aspects, an elastic composite material for a stretchable electronics device includes a first material having a particular electrical, mechanical or optical property; and a multi-block copolymer configured to form a hyperelastic binder that creates contact between the first material and the multi-block copolymer, in which the elastic composite material is structured to stretch at least 500% in at least one direction of the material and to exhibit the particular electrical, mechanical or optical property imparted from the first material. In some aspects, the stretchable electronics device includes a stretchable battery, biofuel cell, sensor, supercapacitor or other device able to be mounted to skin, clothing or other surface of a user or object.

Hyperelastic binder for printed, stretchable electronics

A method of treating the surface of a positive electrode active material that is capable of inhibiting a reaction at the interface between a sulfide-based solid electrolyte and the positive electrode active material. A positive electrode active material particle for sulfide-based all-solid-state batteries, the surface of which is reformed, using the method and a sulfide-based all-solid-state battery, the charge/discharge characteristics of which are improved, including the same are also disclosed. The positive electrode active material particle for sulfide-based all-solid-state batteries manufactured using a dry-type method exhibits larger capacity than a positive electrode active material particle for sulfide-based all-solid-state batteries manufactured through a conventional wet-type process. In addition, the manufacturing process is simplified, and the amount of byproducts is reduced.

Positive electrode active material particle for sulfide-based all-solid-state batteries

Disclosed herein are a sulfide-based all-solid-state battery and a method of manufacturing the same, wherein the sulfide-based all-solid-state battery includes a positive electrode active material coated with a lithium niobate precursor, which is manufactured by a polyol process having low production cost, such that it improves safety and increases capacity of the sulfide-based all-solid-state battery.

Sulfide-based all-solid-state battery including positive electrode active material coated with lithium niobate precursor and method of manufacturing the same

Disclosed herein are a method of manufacturing a sulfide-based all-solid-state battery, and a sulfide-based all-solid-state battery manufactured thereby, wherein the battery includes a surface heat-treated positive electrode active material, which is simply performed by heating a positive electrode active material at 400&#xb0; C. to 600&#xb0; C. in an inert gas state, as a low-cost method of uniformly treating the surface of a positive electrode active material such that the positive electrode active material does not react with a sulfide-based solid electrolyte.

Sulfide-based all-solid-state battery including surface heat-treated positive electrode active material and method of manufacturing the same

Methods, systems, and apparatuses are described for implementing electrochemical energy storage devices using a liquefied gas electrolyte. The mechanical designs of an electrochemical device to house a liquefied gas electrolyte as well as methods of filling and sealing said device are presented.

Electrochemical cell cap

Presented are new, earth-abundant lithium superionic conductors, LiY(PS)and L1PSCl, that emerged from a comprehensive screening of the Li&#x2014;P&#x2014;S and Li&#x2014;M&#x2014;P&#x2014;S chemical spaces. Both candidates are derived from the relatively unexplored quaternary silver thiophosphates. One key enabler of this discovery is the development of a first-of-its-kind high-throughput first principles screening approach that can exclude candidates unlikely to satisfy the stringent Li+ conductivity requirements using a minimum of computational resources. Both candidates are predicted to be synthesizable, and are electronically insulating. Systems and methods according to present principles enable new, all-solid-state rechargeable lithium-ion batteries.

Electrochemical energy storage devices utilize ionic conducting electrolyte solution to carry charge between positive and negative electrodes. The electrolyte solutions use a mixture of solvent and salt and additional components, or additives, for improved electrochemical stability of the device. In an exemplary embodiment, an electrochemical device includes an electrolyte and housing to provide a pressurized condition for the electrolyte, and electrodes in contact with the electrolyte.

Electrochemical energy storage device

A lithium-excess cathode material according to Li1+xNiaMnbCocModO2&#x2212;y (0&#x3c;x&#x3c;0.3, 0&#x2264;a&#x2264;1, 0&#x2264;b&#x2264;1, 0&#x2264;c&#x2264;1, 0&#x2264;d&#x2264;0.2, 0&#x2264;y&#x2264;0.25) in the form of secondary spherical microparticles formed from primary spherical nanoparticles. The primary nanoparticles can in the range of &#x2dc;130 nm to 170 nm and the secondary in the range of &#x2dc;2-3 &#x3bc;m. A method of formation includes mixing a carbonates or hydroxides solution into a mixed solution of transition metal (M) ions with predetermined stoichiometry under stirring, and aging resulting transition metal carbonates or hydroxides at a predetermined temperature for period of time to produce primary nanoparticles of a predetermined size. A gas-solid interface reaction to uniformly creating oxygen vacancies without affecting structural integrity of Li-excess layered oxides is also provided.

Lithium-excess cathode material and co-precipitation formation method

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San Diego, CA, United States of America

Ying Shirley Meng