Energy storage devices, battery cells, and batteries of the present technology may include a first cell and a second cell disposed adjacent the first cell. The devices may include a stacked current collector coupled between the first cell and the second cell. The current collector may include a grid or matrix, and may include a combination of conductive and insulative materials.

A sensor-on-clamp device for use in a drilling system, the clamp being a tool joint clamp and houses one or more sensors mounted to the tool joint clamp, a power source and sensor data transmitting means. One or more sensors for use in a drilling system, said sensors being powerable by a single commercially available, replaceable battery.

In an example implementation, an energy storage device storage system is disclosed. The energy storage device storage system may include an energy storage device enclosure configured to be disposed between a first longitudinal support structure and a second longitudinal support structure. The first and second longitudinal support structures can extend between first and second support structures. The energy storage device enclosure may include one or more slots configured to receive an energy storage device. The one or more slots each include one or more ports configured to provide an electrical connection to the energy storage device. The energy storage device enclosure may further include one or more jammers attached to outer sidewalls of the energy storage device enclosure. The one or more jammers configured to hold the energy storage device enclosure between the first and second support structures.

A battery pack having a plurality of reinforcing elements disposed between cell holders and separating the cell connectors of the battery pack. Thereby, the battery pack according to the invention provides improved protection against short circuits during manufacture.

A non-aqueous lithium power storage element that includes a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte, the positive electrode having a positive electrode collector and a positive electrode active material layer that includes active carbon, and the non-aqueous lithium power storage element having configuration (1) and/or (2). (1) The negative electrode includes a negative electrode collector and a negative electrode active material layer (2) The non-aqueous electrolyte contains (A) LiPF.sub.6 and/or LiBF.sub.4, (B) an imide lithium salt, and (C) an oxalate-complex lithium salt, the ratio of the mass of component (C) to the total mass of components (A) and (B) being 1.0-10.0 mass %.

A battery pack includes at least one cell assembly including a plurality of secondary batteries stacked in a direction, a module housing having an internal space in which the at least one cell assembly is received, and a spacer member interposed between the plurality of secondary batteries, and configured to press the plurality of secondary batteries in two directions to space the plurality of secondary batteries apart when a temperature of at least one of the plurality of secondary batteries is equal to or higher than a predetermined temperature.

An energy storage device includes: a battery rack fixedly installed in a building or a container and having a partitioned space; and a plurality of battery modules installed in the partitioned space of the battery rack, wherein each of the plurality of battery modules is inserted into the battery rack in a sliding manner, wherein a front surface of each of the plurality of battery modules is fixed to the battery rack with a bolt, and wherein a rear surface of each of the plurality of battery modules is fixed to the battery rack with a hook.

A method for charging and/or discharging an energy store with a current I.sub.0, wherein the energy store has at least one cell block having a number J of series-connected battery cells, at least some of the battery cells of which may have different efficiencies η.sub.N, where 1≤N≤J, has the following method steps: determining the battery cell having the lowest efficiency η.sub.min, and adjusting the efficiency η.sub.N of all the other battery cells to this lowest efficiency η.sub.min such that the adjusted efficiency η.sub.N′ of the battery cells is n.sub.N′=η.sub.min.

An object of the present invention is to provide a battery state estimation device capable of accurately estimating a deterioration state of an entire battery system in consideration of an SOH distribution of battery cells. The battery state estimation device according to the present invention estimates an SOH of a battery cell by using a correspondence between a time derivative of an output voltage during a pause period of the battery cell and a battery temperature, and estimates a deterioration state of an entire battery system by using the SOHs of a plurality of battery cells (see FIG. 1).

An energy storage apparatus includes: a plurality of energy storage devices each including a gas release valve, the plurality of energy storage devices being arranged along a predetermined direction in a posture where the gas release valves are directed in the same direction; an exhaust portion disposed on the gas release valves of the plurality of respective energy storage devices, the exhaust portion forming an exhaust path for a gas discharged from the gas release valves; and a housing accommodating the plurality of the energy storage devices and the exhaust portion, wherein the exhaust portion includes an exhaust port portion that protrudes from the housing and forms an outlet portion of the exhaust path.