Samsung Electronics Co., Ltd.

Massachusetts Institute of Technology

University of California

William D Richards

Gerbrand Ceder

Lincoln James Miara

Yan E Wang

Naoki Suzuki

Jae Chul Kim

Tomoyuki Tsujimura

Shyue Ping Ong

Yifei Mo

Yuichi Aihara

Young-Gyoon Ryu

Jaechul Kim

Ichiro Uechi

Provided is a lithium-conductive solid-state electrolyte material that comprises a sulfide compound of a composition that does not deviate substantially from a formula of LiSN. The compound's conductivity is greater than about 1&#xd7;10S/cm at about 25&#xb0; C. and is in contact with a negative electroactive material. Also provided is an electrochemical cell that includes an anode layer, a cathode layer, and the electrolyte layer between the anode and cathode layers. In an example, the material's activation energy can be no greater than about 0.52 eV at about 25&#xb0; C.

Battery including a sulfide barrier coating

A solid electrolyte material is of the formula APXOwherein wherein A is Li or Na, wherein X is S, Se, or a combination thereof, provided that when M is Li, X is Se, and wherein 0&#x2264;x&#x2264;0.25 and 0&#x2264;y&#x2264;2.5. Also, an electrochemical cell including the solid electrolyte material, and methods for the manufacture of the solid electrolyte material and the electrochemical cell.

Lithium and sodium solid-state electrolyte materials

A positive electrode active material includes a core and a coating disposed on at least a portion of a surface of the core. The core includes a lithium metal oxide, a lithium metal phosphate, or a combination thereof. The coating includes a compound according to the formula LiMX, wherein M, X, m, n and p are as defined herein. Also, an electrochemical cell including the positive electrode active material, and methods for the manufacture of the positive electrode active material and the electrochemical cell.

Positive electrode active material, methods for the manufacture thereof, and electrochemical cell comprising the positive electrode active material

Lithium sulfur nitrogen compound for anode barrier coating or solid electrolyte

A solid electrolyte material represented by Formula 1:L(M1)(M2)(M3)&#x2003;&#x2003;Formula 1wherein 0.25&#x3c;x&#x3c;1, L is at least one element selected from a Group 1 element, M1 is at least one element selected from a Group 2 element, a Group 3 element, a Group 12 element, and a Group 13 element, M2 is at least one element selected from a Group 5 element, a Group 14 element, and a Group 15 element, and M3 is at least one element selected from a Group 16 element, and wherein the solid electrolyte material has an I-4 crystal structure.

Solid electrolyte and lithium battery including the same

Embodiments of a method, a system, and non-transitory computer readable storage media evaluating electrochemical qualities for interphase products. The disclosed embodiments perform a selection of a plurality of chemical phases for a solid electrolyte and at least one of the anode and cathode to be received. Thermodynamic data is received for the plurality of chemical phases. The retrieved thermodynamic data is received to evaluate a respective electrochemical quality for at least one of an interface between the solid electrolyte and the anode, and an interface between the solid electrolyte and the cathode.

Computing system for identification of solid-solid interphase products

Solid electrolyte materials as well as their applications and methods of manufacture are disclosed. In one embodiment, a solid electrolyte material has a formula of AClBO, where &#x3b4; is greater than 0. In the above formula, A is at least one of Li and Na, and B is at least one of S, Se, and N. In another embodiment, a solid electrolyte material is a crystal structure having the general formula AXO, where A is at least one of Li and Na. Additionally, X is Cl, at least a portion of which is substituted with at least one of S, Se, and N. The solid electrolyte material also includes interstitial lithium ions and/or interstitial sodium ions located in the crystal structure.

Solid electrolyte and/or electroactive material

A sodium-conductive solid-state electrolyte material includes a compound of the composition NaMPS, wherein M is selected from Ge, Si, and Sn. The material may have a conductivity of at least 1.0&#xd7;10S/cm at a temperature of about 300K and may have a tetragonal microstructure, e.g., a skewed P1 crystallographic structure. Also provided are an electrochemical cell that includes the sodium-conductive solid-state electrolyte material and a method for producing the sodium-conductive solid electrolyte material via controlled thermal processing parameters.

Sodium-conducting solid electrolyte

Non-normal statistics applied to diffusivity calculations accelerate screening of ionic conductors for electrochemical devices such as electric storage batteries, fuel cells, and sensors. Displacements of atomic species within a crystalline structure for a candidate ionic conductor material are analyzed using a Skellam distribution optionally combined with Gaussian noise to calculate values for the standard deviation, upper error bound, and lower error bound for predicted values of diffusivity (D). When the predicted values of D have sufficient statistical precision, the diffusivity calculation is terminated and the calculated diffusivity is compared to a threshold value of diffusivity. When the threshold has been exceeded, the candidate ionic conductor may be listed as a preferred good conductor. When the calculated diffusivity fails to exceed the threshold, the material may be listed as a poor conductor and may be eliminated from further consideration.

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Cambridge, MA, United States of America

William D Richards