Apple Inc.

Infinite Power Solutions, Inc.

Sapurast Research LLC

Medtronic, Inc.

Inifinite Power Solutions, Inc.

Shawn W Snyder

Bernd J Neudecker

Tetsuya Ishikawa

Paul Brantner

Richard M Mank

Terry N Tiegs

John K Day

Tor Collins Anderson

Michael William Barror

Jeffrey J Kelly

Mona Shirpour

Alexandra Z LaGuardia

Damon E Lytle

Ronald David Brost

Joseph A Keating

Sandeep Rekhi

Brian C Menzel

Timothy Wallen Scales

Jianer Bao

Prativadi B Narayan

Timothy N Bradow

Raymond R Johnson

Henry L Zoetewey

Pawan K Bhat

Juchuan Li

Timothy J Bradow

Shefall Jaiswal

Keiichiro Yumiba

Sally S Lou

Paul C Brantner

A solid-state cathode for a solid-state electrochemical cell includes an electrochemically active cathode material and one or more elemental dopant residing in grain boundaries of the electrochemically active cathode material. The grain boundaries contain at least 0.2 wt % of the one or more elemental dopant and the one or more elemental dopant is less than 10 wt % of the solid-state cathode. The solid-state cathode does not have liquid, gel and polymer materials.

Cathode for solid-state electrochemical cell having elemental dopant in grain boundaries

Lithium-metal batteries with improved dimensional stability are presented along with methods of manufacture. The lithium-metal batteries incorporate an anode cell that reduces dimensional changes during charging and discharging. The anode cell includes a container having a first portion and a second portion to form an enclosed cavity. The first portion is electrically-conductive and chemically-stable to lithium metal. The second portion is permeable to lithium ions and chemically-stable to lithium metal. The anode cell also includes an anode comprising lithium metal and disposed within the cavity. The anode is in contact with the first portion and the second portion. The cavity is configured such that volumetric expansion and contraction of the anode during charging and discharging is accommodated entirely therein.

Lithium-metal batteries having improved dimensional stability and methods of manufacture

A lithium battery cathode material comprises lithium transition metal-based material selected from lithium transition metal oxides and lithium transition metal phosphates, and crystalline silicon carbide residing at grain boundaries of the lithium transition metal-based material, forming conductive pathways along the grain boundaries, the crystalline silicon carbide being less than 10 wt. % of the cathode material.

Cathode active material with silicon carbide additive

Solid-state battery structures and methods of manufacturing solid-state batteries are disclosed. More particularly, embodiments relate to solid-state batteries having one or more subdivided electrode layers. Other embodiments are also described and claimed.

Devices and methods for reducing battery defects

A cathode for a solid-state battery comprises a composite cathode active material formed of a layered lithium cobalt oxide (LCO) in a solid solution matrix of lithium oxide (LiO) and a cobalt oxide phase. For example, the composite cathode active material can be layered LCO in a solid solution matrix of one of LiO&#x2014;LiCoO&#x2014;CoO, LiO&#x2014;LiCoO and LiO&#x2014;CoO, with 0&#x2264;x&#x2264;0.5. The LCO is at least 80 wt. % of the composite cathode active material. The cathode is a sintered solid-state cathode wafer that is free-standing, upon which solid-state battery cells are fabricated.

Solid solution cathode for solid-state battery

Rechargeable, high-density electrochemical devices are disclosed. These electrochemical devices may, for example, include high energy densities that store more energy in a given, limited volume than other batteries and still show acceptable power or current rate capability without any liquid or gel-type battery components. Certain embodiments may involve, for example, low volume or mass of all of the battery components other than the cathode, while simultaneously achieving high electrochemically active mass inside the positive cathode.

Rechargeable, high-density electrochemical device

Solid-state battery structures and methods of manufacturing solid-state batteries, such as thin-film batteries, are disclosed. More particularly, embodiments relate to solid-state batteries having a current collector tab between multiple electrochemical cells each having an electrolyte layer between an anode layer and a cathode layer in a vertical direction. The anode layer, the electrolyte layer, and the cathode layer include respective sidewalls exposed along a cell sidewall, and the cell sidewall has a non-zero, non-vertical slope.

Thin film battery structures having sloped cell sidewalls

Solid-state battery structures and methods of manufacturing solid-state batteries, such as thin-film batteries, are disclosed. More particularly, embodiments relate to solid-state batteries having a current collector tab between multiple electrochemical cells. Other embodiments are also described and claimed.

Solid-state battery structures and methods of manufacturing solid-state batteries, such as thin-film batteries, are disclosed. More particularly, embodiments relate to solid-state batteries having an intermediate adhesive layer between several electrochemical cells. In an embodiment, an anode current collector at least partially fills a notch in a periphery of the intermediate adhesive layer. Other embodiments are also described and claimed.

Thin film battery assemblies

The present invention relates to apparatus, compositions and methods of fabricating high performance thin-film batteries on metallic substrates, polymeric substrates, or doped or undoped silicon substrates by fabricating an appropriate barrier layer composed, for example, of barrier sublayers between the substrate and the battery part of the present invention thereby separating these two parts chemically during the entire battery fabrication process as well as during any operation and storage of the electrochemical apparatus during its entire lifetime. In a preferred embodiment of the present invention thin-film batteries fabricated onto a thin, flexible stainless steel foil substrate using an appropriate barrier layer that is composed of barrier sublayers have uncompromised electrochemical performance compared to thin-film batteries fabricated onto ceramic substrates when using a 700&#xb0; C. post-deposition anneal process for a LiCoOpositive cathode.

Electrochemical apparatus with barrier layer protected substrate

An electrochemical device is claimed and disclosed, including a method of manufacturing the same, comprising an environmentally sensitive material, such as, for example, a lithium anode; and a plurality of alternating thin metallic and ceramic, blocking sub-layers. The multiple metallic and ceramic, blocking sub-layers encapsulate the environmentally sensitive material. The device may include a stress modulating layer, such as for example, a Lipon layer between the environmentally sensitive material and the encapsulation layer.

Thin film encapsulation for thin film batteries and other devices

The present invention relates to flexible thin film batteries on semiconducting surface or the conductive or insulating packaging surface of a semiconductor device and methods of constructing such batteries. Electrochemical devices may be glued to a semiconducting surface or the conductive or insulating packaging surface of a semiconductor device or deposited directly thereon. The invention also relates to flexible thin film batteries on flexible printed circuit board where the electrochemical devices may also be glued or deposited on the flexible printed circuit board.

Thin film battery on an integrated circuit or circuit board and method thereof

A power source for a solid state device includes: a first frame having a first contact portion, a first bonding portion and a first extension portion between the first contact portion and the first bonding portion; a second frame having a second contact portion, a second bonding portion and a second extension portion between the second contact portion and the second bonding portion; and a first pole layer, an electrolyte layer and a second pole layer positioned between the first and second contact portions, wherein a first portion of the electrolyte layer is positioned between the first extension and the first pole and a second portion of the electrolyte layer is positioned between the first extension and the second pole.

Growing community of inventors

Golden, CO, United States of America

Shawn W Snyder