The invention relates to a galvanic cell (2) comprising a housing (4) which is equipped with at least one cell coil or a cell stack and comprising a sensor (16) for detecting the pressure of the galvanic cell (2). The housing (4) has a recess which is formed from a through-opening between an interior and an exterior of the cell (2), and the sensor (16) is arranged outside of the cell (2) so as to be secured directly or indirectly to the cell. The sensor (16), in particular a micro electromechanical system, is in contact with the interior of the galvanic cell (2) via the recess. The invention additionally relates to a method for producing such a galvanic cell (2).

A discharge prevention system for a primary battery comprises an energy harvesting module that produces energy from an environment and a control circuit for applying electrical current to the primary battery from the energy harvesting module to prevent or reduce self-discharge. This system will prevent or reduce rapid self-discharge at high temperatures in lithium-based primary batteries, for example. It can significantly extend the operating lifetime of such batteries operating at high temperature, particularly in applications where battery power is used intermittently. Specifically, a very low current is supplied to the primary battery at high temperature, significantly extending its storage lifetime. In some cases, depending on the current characteristics of the battery, the energy associated with the bias current can be in the same order of magnitude as the energy that would be lost by self-discharge, but in many cases it is much lower. This bias current “biases” the battery in such a way that self-discharge current of the primary battery is minimized.

A semiconductor battery includes a substrate, a battery anode semiconductor material arranged in or over the substrate, a battery cathode material arranged in or over the substrate and a battery electrolyte disposed between the battery anode semiconductor material and the battery cathode material. An electrically insulating encapsulant has a first face and a second face. The substrate is at least partly embedded in the encapsulant. An anode electrode is electrically connected to the battery anode semiconductor material and is disposed over the second face of the encapsulant. A cathode electrode is electrically connected to the battery cathode material and is disposed over the first face of the encapsulant.

An energy storage apparatus having a housing, a plurality of battery cells, a temperature-control system with a liquid temperature-control medium for cooling and/or heating the battery cells in the housing. An absorbent element is arranged spatially between the battery cells and the housing such that any temperature-control medium escaping from the temperature-control system is absorbed by the absorbent element. The absorbent element is separated from the battery cells by an electrically insulating layer, the electrically insulating layer being impermeable to the temperature-control medium.

Methods and systems for electrolyte regeneration are provided, which regenerate a spent alkaline electrolyte (SE) comprising dissolved aluminum hydrates from an aluminum-air battery, by electrolysis, to precipitate aluminum tri-hydroxide (ATH) and form regenerated alkaline electrolyte, and adding a same-cation salt to an anolyte used in the electrolysis to supplant a corresponding electrolyte cation. The regeneration may be carried out continuously and further comprise mixing the SE and the same-cation salt in a salt tank configured to deliver the anolyte, removing the regenerated alkaline electrolyte from a catholyte tank configured to deliver the catholyte, and filtering the ATH from a solution delivered from the salt tank to the anolyte. Optionally, the salt may be a buffering salt, and in some cases chemical reactions may be used to enhance the regeneration by electrolysis.

A disposable portable vehicle starting unit including a housing having a handle for carrying the disposable portable vehicle starting unit by hand or by attaching to clothing, a lithium ion 28 volt battery enclosed in the housing, and a 3-pin connector attached to the housing and electrically connected to positive and negative terminals of the lithium ion 28 volt battery, the 3-pin connector being externally accessible.

Provided is a system and medical device that includes self diagnosing control switches. The control switch may be slidable within a slot in order to control activation of some function of the medical device. Due to natural wear and tear of movement of a control switch, the distances along the sliding slot that correspond to how much energy is used for the function may need to be adjusted over time in order to reflect the changing physical attributes of the actuator mechanism. The self diagnosing control switches of the present disclosures may be configured to automatically adjust for these thresholds using, for example, Hall effect sensors and magnets. In addition, in some cases, the self diagnosing control switches may be capable of indicating external influences on the controls, as well as predict a time until replacement is needed.

The invention provides a battery management device. The battery management device includes a container, a battery, and an electronic assembly. The container has an airtight space. The battery is located within the airtight space. The electronic assembly is located within the airtight space and electrically connected to the battery. The electronic assembly includes an air pressure sensor, and the air pressure sensor is configured to sense an air pressure in the airtight space.

A method for evaluating a consistency of a battery pack is provided, including: obtaining an initial/real rated capacity and an initial/real dischargeable electric quantity of each cell in a battery pack after a charge and discharge cycle of the battery pack; generating a first/second data diagram for every cells based upon the initial/real rated capacity and the initial/real dischargeable electric quantity; obtaining a first/second information of key cells in the first/second data diagram, defining an initial/real cell distribution region according to the first/second information by processing the first/second data diagram, and calculating a first/second area of the initial/real cell distribution region; and evaluating the consistency of the battery pack according to the first/second area. A strategy for balancing the battery pack is further provided.

A method for evaluating a consistency of a battery pack is provided, including: obtaining an initial/real rated capacity and an initial/real dischargeable electric quantity of each cell in a battery pack after a charge and discharge cycle of the battery pack; generating a first/second data diagram for every cells based upon the initial/real rated capacity and the initial/real dischargeable electric quantity; obtaining a first/second information of key cells in the first/second data diagram, defining an initial/real cell distribution region according to the first/second information by processing the first/second data diagram, and calculating a first/second area of the initial/real cell distribution region; and evaluating the consistency of the battery pack according to the first/second area. A strategy for balancing the battery pack is further provided.