An electrode is provided that includes a high-nickel electroactive material having greater than or equal to about 0.6 mole fraction of nickel, and greater than or equal to about 0.1 wt. % to less than or equal to about 2 wt. % of a sulfonated aromatic ionomer additive. The electrode is prepared by contacting an electroactive material slurry with one or more surfaces of a current collector, where a solids portion of the slurry includes greater than or equal to about 45 wt. % to less than or equal to about 99 wt. % of a high-nickel electroactive material, and greater than or equal to about 0.1 wt. % to less than or equal to about 2 wt. % of a sulfonated aromatic ionomer additive.

An electrode for an electrochemical energy storage device formed from an electrostatic deposition process employs a composite particle including active material (AM) particle with adhered binder and optionally conductive particles formed with sufficient interaction forces between the individual ingredient particles to form an effective composite particle which can overcome particle separation during electrostatic charging, fluidization, and/or mechanical conveyance. Secondary binder particles undergo deagglomeration to form sub particles, which are adhered to the AM particles having a predetermined morphology. Smaller conductive particles, typically carbon black (CB) or similar carbon, are bound to the binder and adhere to the AM particles. The result is a composite particle adhered for withstanding separation forces imposed from electrostatic deposition onto a current collector. Application of a plurality of composite particles onto a conductive current collector in a uniform pattern and defined loading promotes robust energy density, power density, and cycle life for an electrochemical energy storage device.

A cathode configured for a solid-state battery includes a body having grains of inorganic material sintered to one another, wherein the grains comprise lithium. A thickness of the body is from 3 μm to 100 μm. The first major surface and the second major surface have an unpolished granular profile such that the profile includes grains protruding outward from the respective major surface with a height of at least 25 nm and no more than 150 μm relative to recessed portions of the respective major surface at boundaries between the respective grains.

An electrode material including a carbonaceous-coated electrode active material having primary particles of the electrode active material and secondary particles that are aggregates of the primary particles, and a carbonaceous film that coats the primary particles of the electrode active material and the secondary particles that are the aggregates of the primary particles, in which a specific surface area, which is obtained using a nitrogen adsorption method, is 4 m.sup.2/g or more and 40 m.sup.2/g or less, a volume of micropores per unit mass is 0.05 cm.sup.3/g or more and 0.3 cm.sup.3/g or less, and an average micropore diameter, which is obtained from the volume of the micropores per unit mass and the specific surface area, is 26 nm or more and 90 nm or less.

Systems and methods are provided for an electrode for a lithium-ion battery cell. In one example, the electrode may include a current collector having two opposing sides, at least one of the two opposing sides being configured with a first coating layer disposed on the current collector at a first loading, where the first coating layer may include a first binder in a first weight ratio, and a second coating layer disposed on the first coating layer at a second loading, where the second coating layer may include a second binder in a second weight ratio, wherein the first weight ratio may be greater than the second weight ratio, and a ratio of the first loading to the second loading may be less than 1:2. In this way, direct current internal resistance of the lithium-ion battery cell may be decreased while maintaining or increasing adhesion within the electrode.

A system and method for implementing and manufacturing a hierarchy system for use with a TMCCC-containing electrically-conductive structure (e.g., an electrode) as well as methods for use and manufacturing of such structures and electrochemical cells including these devices. Structures and methods include a coordination complex having L.sub.xM.sub.yN.sub.zTi.sub.a1V.sub.a2Cr.sub.a3Mn.sub.a4Fe.sub.a5Co.sub.a6Ni.sub.a7Cu.sub.a8Zn.sub.a9Ca.sub.a10Mg.sub.a11[R(CN).sub.6].sub.b (H.sub.2O).sub.c. The method includes binding electrochemically active material to produce a hierarchical structure, the hierarchical structure having a plurality of primary crystallites having a size D1, the plurality of these primary crystallites agglomerated into a set of agglomerates each agglomerate having a size D2>D1.

A positive electrode slurry includes a lithium-containing phosphate material, a first positive electrode additive, a second positive electrode additive, and a binder. The first positive electrode additive includes at least one of a compound represented by structural formula 1 or a compound represented by structural formula 2 below. R.sub.1 is selected from C2-C4 alkylene, alkenylene, and derivatives thereof, substituted or unsubstituted by halogen. R.sub.2 and R.sub.3 are each independently alkyl, alkenyl, alkynyl, or aryl, substituted or unsubstituted by halogen. The binder includes a polymer including a repeating unit represented by structural formula 3 below. A pH value of the second positive electrode additive is greater than or equal to 10.0.

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Provided are anode for secondary battery, preparation method thereof and secondary battery. The anode comprises metal foil and a compact film of metal phosphates disposed on a surface of the metal foil, wherein the compact film of metal phosphates comprises one or more of aluminum phosphate, copper phosphate, iron phosphate, tin phosphate, zinc phosphate, nickel phosphate, manganese phosphate, lead phosphate, antimony phosphate, cadmium phosphate and bismuth phosphate. Disposed on the surface of the metal foil is a film of metal phosphates which insulates against electrons and is arranged such that metallic ions such as lithium ions can pass therethrough. The film of metal phosphates functions like a solid electrolyte interphase, improves the compatibility of the anode with the electrolyte solution, reduces the decomposition of the electrolyte solution, and improves charging and discharging efficiency, cyclability, high and low temperatures performance and safety performance of battery.

Provided is a sulfur-based active material for a non-aqueous electrolyte secondary battery having a large charge/discharge capacity and excellent cycle characteristics which is inexpensively and easily provided, an electrode comprising the sulfur-based active material, and a non-aqueous electrolyte secondary battery comprising the electrode, as well as a producing method thereof. The sulfur-based active material is obtainable by calcinating a raw material, the raw material comprising (1) a heat-expandable particle comprising an outer shell comprising an acryl-based copolymer and a hydrocarbon included inside the outer shell, the heat-expandable particle having an expansion starting temperature of 150° C. or lower, and (2) sulfur.

A positive electrode, a lithium secondary battery comprising the same, and a method of manufacturing the same are provided. The positive electrode comprises a positive electrode current collector; a positive electrode active material layer including a free-standing film positive electrode material manufactured by a dry process, taking advantage of strong self-cohesive force of sulfur-carbon composite under pressure condition; and a binding layer bonding the positive electrode active material layer and the positive electrode current collector.