The electrical resistance of active cathodic and anodic films may be significantly reduced by the addition of small fractions of conductive additives within a battery system. The decrease in resistance in the cathode and/or anode leads to easier electron transport through the battery, resulting in increases in power, capacity and rates while decreasing joules heating losses.

A negative electrode plate includes a three-dimensional framework structure. The three-dimensional framework structure includes fibers and rigid particles. Mohs hardness of the rigid particles is greater than or equal to 2, and an elastic modulus of the rigid particles is greater than or equal to 40 Gpa. The three-dimensional framework structure can mitigate volume expansion of the negative active material during cycling. On the other hand, the rigid particles help to stabilize the three-dimensional framework structure and can serve as a lithium wetting material to induce lithium to deposit inside the three-dimensional framework, thereby reducing the generation of lithium dendrites and improving safety performance and cycle performance of the formed electrochemical device.

An anode for a lithium-based energy storage device such as a lithium-ion battery is disclosed. The anode includes an electrically conductive current collector comprising an electrically conductive layer and a transition metal oxide layer overlaying the electrically conductive layer. The anode may include a continuous porous lithium storage layer provided over the transition metal oxide layer. The continuous porous lithium storage layer may include at least 40 atomic % silicon. A method of making the anode may include providing an electrically conductive current collector having an electrically conductive layer and a transition metal oxide layer provided over the electrically conductive layer. The transition metal oxide layer may have an average thickness of at least 0.05 μm. A continuous porous lithium storage layer is deposited over the transition metal oxide layer by PECVD.

The electrical resistance of active cathodic and anodic films may be significantly reduced by the addition of small fractions of conductive additives within a battery system. The decrease in resistance in the cathode and/or anode leads to easier electron transport through the battery, resulting in increases in power, capacity and rates while decreasing joules heating losses.

This negative electrode for secondary batteries is provided with a negative electrode mixture that contains a negative electrode active material, an additive and a conductive agent. The negative electrode active material contains an Si-containing material; the additive contains an alkali metal sulfate salt; and the conductive agent contains carbon nanotubes. The content of the alkali metal sulfate salt in the negative electrode mixture is from 0.0025% by mass to 0.1% by mass relative to the total mass of the negative electrode active material.

A negative electrode for a lithium metal battery, a method of manufacturing the same, and a lithium metal battery including the same are provided. Specifically, one embodiment of the present invention provides a negative electrode for a lithium metal battery, the negative electrode including: a negative electrode current collector; a primer layer including an epoxy resin and a Ag conductive filler, the primer layer disposed on one surface or both surfaces of the negative electrode current collector; and a lithium metal (Li-metal) thin film disposed on the primer layer.

A method for producing a silicon anode for secondary batteries. Mesoporous silicon is used for the anode to provide space for volume expansion in the course of intercalation, especially of lithium ions. However, instead of coating a metal film with silicon, here metal is deposited onto a monocrystalline etched silicon wafer. It is essential that the silicon is monocrystalline and that the two flat sides of the wafer are (100)-oriented, i.e., perpendicular to the (100)-direction of the volumetric crystal.

An electrode for a secondary battery includes a plurality of active material particles. A length of each of the active material particles in a first direction along a thickness direction of the electrode is larger than a length of the active material particle in a second direction intersecting the first direction.

An electrode for a lithium-ion battery, comprising a resin current collector; and an electrode active material layer formed on the resin current collector, and containing coated electrode active material particles in which at least a part of a surface of an electrode active material particle is coated with a coating layer including a polymer compound, wherein the resin current collector has a recess on a principal surface that comes into contact with the electrode active material layer, the relationship between the maximum depth (D) of the recess and the D50 particle size (R) of the electrode active material particles satisfies 1.0R≤D≤6.5R, and the relationship between the length (S) of the shortest part of the length passing through the center of gravity of the recess and the D50 particle size (R) of the electrode active material particles satisfies 1.5R≤S.

An anode for an energy storage device includes a current collector having an electrically conductive layer that includes nickel or copper, and a lithium storage structure comprising a plurality of first microstructures in contact with the electrically conductive layer. Each first microstructure includes silicon and is characterized by a first maximum width measured across the widest section orthogonal to the first microstructure axis. Each first microstructure includes a first portion characterized by the width substantially tapering from the maximum width to a location where each first microstructure contacts the electrically conductive layer and a second portion positioned farther from the electrically conductive layer than the first portion, the second portion defining a substantially hemispherical shape and the top of each first microstructure. The lithium storage structure has at least 1 mg/cm.sup.2 of active silicon and a total atomic % of nickel and copper is from 0.5% to 1.2%.