Provided is a positive electrode composition with which a lithium sulfur battery may achieve a high cycle capacity retention. The positive electrode composition for lithium sulfur batteries includes a sulfur-carbon composite including a carbon material having void spaces and an elemental sulfur containing material disposed in the void spaces of the carbon material, and a lithium transition metal composite oxide.

Methods of preparing a positive electrode slurry are disclosed. One example of disclosed examples includes: preparing a first mixture comprising a positive electrode active material and an acid additive; preparing a second mixture comprising a conductive material and a dispersing material; and mixing the first mixture and the second mixture.

Methods of making a solid state electrode and electrolyte for an all solid state lithium battery include mixing a lithiated perfluorosulfonic acid with a solvent to form an electrolyte polymer solution, mixing lithiated perfluorosulfonic with garnet type oxide polymer-composite solution, preparing a cathode electrode, coating the cathode electrode with the electrolyte polymer solution to form an electrolyte layer, laminating a reinforcement layer over the electrolyte polymer solution coated onto the cathode electrode, and coating the reinforcement layer with electrolyte polymer solution to form another electrolyte layer to form the solid state electrode and electrolyte.

Methods of making a lithiated composite fiber include mixing lithiated perfluorosulfonic acid with a suitable polymer to form a polymer solution and electrospinning the polymer solution to generate a lithiated fiber. The lithiated fiber can be used to make positive electrodes. Methods of making a positive electrode with lithiated fiber include mixing an active material, lithiated fiber, an electrically conductive additive, and a solvent to form a solution and processing the solution. The processed solution can be coated on an aluminum sheet.

An electrochemical cell includes an anode, a cathode, a separator, and a liquid electrolyte. The cathode includes an active material, a conductive material, a binder, and a gelling powder. The separator is arranged between the anode and the cathode. The separator is configured to prevent direct contact between the anode and the cathode. The liquid electrolyte transports positively charged ions between the cathode and the anode.

A positive electrode active material includes a plurality of lithium nickel phosphate nanoparticles having an olivine structure and having an exposed surface that is a {111} crystal plane. The positive electrode active material can be used in a positive electrode for an electrochemical cell.

In a secondary battery including a non-aqueous electrolyte and a positive electrode, the improvement disclosed is a positive electrode composed of a material that a positive electrode active material and is composed of LiX, where X represents a halogen atom; and Fe.sub.2O.sub.3. A method of manufacturing the positive electrode active material includes mixing first particles and second particles to provide a mixture, wherein the first particles comprise LiX, where X represents a halogen atom, and the second particles comprise Fe.sub.2O.sub.3. A positive electrode including the positive electrode active material is disclosed, as well as a battery including the positive electrode, a battery pack including the battery, and a vehicle including the battery.

In a secondary battery including a non-aqueous electrolyte and a positive electrode, the improvement disclosed is a positive electrode composed of a material that a positive electrode active material and is composed of LiX, where X represents a halogen atom; and Fe.sub.2O.sub.3. A method of manufacturing the positive electrode active material includes mixing first particles and second particles to provide a mixture, wherein the first particles comprise LiX, where X represents a halogen atom, and the second particles comprise Fe.sub.2O.sub.3. A positive electrode including the positive electrode active material is disclosed, as well as a battery including the positive electrode, a battery pack including the battery, and a vehicle including the battery.

To provide an anode material configured to increase the reversible capacity of lithium ion secondary batteries, and a method for producing the anode material. The anode material is an anode material for lithium ion secondary batteries, comprising a P element and a C element and being in an amorphous state.

To provide an anode material configured to increase the reversible capacity of lithium ion secondary batteries, and a method for producing the anode material. The anode material is an anode material for lithium ion secondary batteries, comprising a P element and a C element and being in an amorphous state.