A battery block includes assembled batteries that are arranged in parallel to each other, and the plurality of assembled batteries are each formed of a plurality of batteries as a unit. Each of the batteries has a positive-electrode terminal and a negative-electrode terminal on one end portion of the battery. The assembled battery includes: the plurality of batteries which are arranged in a row with one end portions of the batteries directed in the same direction; an insulation holder which is arranged on one end portion side of the batteries and holds the batteries; and a positive-electrode bus bar and a negative-electrode bus bar arranged on one end portions of the batteries. The positive-electrode bus bar and the negative-electrode bus bar are respectively held by holding portions which are formed on the insulation holder along a row direction and in parallel to each other.

This application is directed to a battery protection system including a sense resistor, a comparator, a switching component, and a protection integrated circuit (PIC). The sense resistor is electrically coupled in series with one of a plurality of rechargeable battery cells that are coupled in parallel in a battery. The comparator is coupled to the sense resistor and configured to compare a voltage drop across the sense resistor with a reference voltage to determine whether a subset of the rechargeable battery cells is not charging in the battery. The switching component is coupled to the battery, while the PIC is coupled to the comparator and the switching component. The PIC is configured to control charging and discharging of the battery including disabling the battery from being charged in accordance with a determination that a subset of the rechargeable battery cells is not charging in the battery.

A battery pack assembly includes at least one battery cell and a terminal connector mechanism. The at least one battery cell has at least one terminal which includes a terminal engagement portion. The terminal connector mechanism has a retention member and a biasing member. The retention member has retention portion and is configured to move between an engaged position and a disengaged position. The biasing member is positioned between the housing and the retention member to bias the retention member towards the engaged position. In the engaged position, the retention portion of the retention member engages with the terminal engagement portion to inhibit movement of the terminal connector mechanism. In the disengaged position, the retention portion of the retention member is disengaged from the terminal engagement portion to permit movement of the terminal connector mechanism.

A battery system, control device, and control method are provided that can improve the cycle service life. One aspect of the present invention is a battery system comprising: a plurality of battery units including at least one battery cell that has a negative electrode that is free of a negative electrode active material; a plurality of switches that can switch between a first state in which a battery unit is connected to a charging pathway or a discharge pathway, and a second state in which a battery unit is not connected to the charging pathway or the discharge pathway; a charge control unit; and a discharge control unit, wherein the charge control unit includes a first switch control unit that simultaneously sets “a” (where “a” is an integer equal to or greater than 2) selected switches to the first state and sets the remaining switches except the “a” switches to the second state, and the discharge control unit includes a second switch control unit that simultaneously sets “b” (where “b” is an integer less than “a”) selected switches to the first state and sets the remaining switches except the “b” switches to the second state.

A flexible battery connection structure is provided. A flexible battery connection structure according to an exemplary embodiment of the present invention comprises: a plurality of flexible batteries electrically connected to each other, disposed along a longitudinal direction, and each including a positive electrode terminal and a negative electrode terminal protruding from one end portions; a connection member disposed at positions corresponding to the positive electrode terminal and the negative electrode terminal to protect the positive electrode terminal and the negative electrode terminal and connect two flexible batteries adjacent to each other; and a housing configured to surround the plurality of flexible batteries connected to each other through the connection members.

A flexible battery connection structure is provided. A flexible battery connection structure according to an exemplary embodiment of the present invention comprises: a plurality of flexible batteries electrically connected to each other, disposed along a longitudinal direction, and each including a positive electrode terminal and a negative electrode terminal protruding from one end portions; a connection member disposed at positions corresponding to the positive electrode terminal and the negative electrode terminal to protect the positive electrode terminal and the negative electrode terminal and connect two flexible batteries adjacent to each other; and a housing configured to surround the plurality of flexible batteries connected to each other through the connection members.

Systems and methods that provide an improved mechanism for attaching a sensor wire to a bus bar in a battery module are disclosed. A battery module according to the present disclosure may include a bus bar comprising a rivet hole and a plurality of battery cells electrically coupled to the bus bar. The battery module may also include a sensor wire comprising a terminal end, as well as a blind rivet passing through the rivet hole of the bus bar and coupling the bus bar to the terminal end of the sensor wire. Attaching the sensor wire to the bus bar with a blind rivet may provide one or more of the following mechanical advantages: fast assembly, robustness for low power applications, elimination of the need to wait for an adhesive to cure, and elimination of the need for double-sided access of the bus bar.

Systems and methods that provide an improved mechanism for attaching a sensor wire to a bus bar in a battery module are disclosed. A battery module according to the present disclosure may include a bus bar comprising a rivet hole and a plurality of battery cells electrically coupled to the bus bar. The battery module may also include a sensor wire comprising a terminal end, as well as a blind rivet passing through the rivet hole of the bus bar and coupling the bus bar to the terminal end of the sensor wire. Attaching the sensor wire to the bus bar with a blind rivet may provide one or more of the following mechanical advantages: fast assembly, robustness for low power applications, elimination of the need to wait for an adhesive to cure, and elimination of the need for double-sided access of the bus bar.

A battery pack and battery pack chassis are described. The battery pack includes a chassis that is configured to position multiple cells proximate to one another within the pack, while also providing areas through which a potting compound can flow and contact the cells. For example, the chassis can include spacers or ribs that separate the cells, in some cases in asymmetric configurations, such that the potting compound contacts the outer surface of each battery cell within the pack. The chassis, in some cases, can also facilitate the connection of a bus bar between battery cells.

A battery includes, stacked successively above a first face of a support, in a stacking direction, at least a cathode including a lower face, an upper face and a side wall directed in the stacking direction from the lower face to the upper face, a solid electrolyte, an anode, the battery including a coating portion surrounding, and in contact with, all of the side wall of the cathode, without covering the upper face of the cathode.