Abstract: In some examples, a control unit is configured to consider battery heat. The control unit is adapted to provide power from a battery to a system during a peak power mode that includes peak power and off-peak power, and consider heat balance in the battery during the peak power mode by providing peak power so that heat of the battery corresponds to a reference condition heat of the battery.

Abstract: Estimating a charge state for a flat-voltage profile battery can be accomplished using impedance measurements. For example, an impedance measurement can be used to form a fuel gauge for a lithium-air (Li-Air) battery. As the impedance of a Li-Air battery increases during discharge, it corresponds to a state of charge (i.e., a charge state). The impedance can be used to create charge state data to use with a fuel gauge.

Abstract: In some examples, a control unit is configured to consider battery heat. The control unit is adapted to provide power from a battery to a system during a peak power mode that includes peak power and off-peak power, and consider heat balance in the battery during the peak power mode by providing peak power so that heat of the battery corresponds to a reference condition heat of the battery.

Abstract: In some examples, a control unit is configured to adjust charge termination voltage of a rechargeable energy storage device. The control unit is adapted to charge the rechargeable energy storage device to a charge termination voltage where the rechargeable energy storage device has capacity to support peak load but comes close to a system shutdown voltage after supporting peak load. The control unit is also adapted to increase the charge termination voltage if a voltage of the rechargeable energy storage device is near a system shutdown voltage after supporting peak load.

Abstract: Techniques for battery retention are disclosed. In the illustrative embodiment, a thin polyurethane strap is used to hold a battery in place. The strap only requires a small amount of volume, allowing for a higher volume (and higher capacity) for the battery. In order to accommodate swelling, a computing device that has a battery held in place with such a strap can have an open area above the battery. The strap may have ridges to contact the battery and the component above the battery beyond the open area. If the battery swells, the ridges may be pressed down, accommodating the swelling battery.

Abstract: A workload dependent load-sharing mechanism in a multi-battery system. The mechanism is an energy management system that operates in three modes—energy saving mode, balancer mode, and turbo mode. The energy saving mode is a normal mode where the multiple batteries provide power to their own set of loads with least resistive dissipation. In balancing mode, the batteries are connected through switches operating in active mode so that the current shared is inversely proportion to the corresponding battery state-of-charge. In turbo mode, both batteries are connected in parallel through switches (e.g., on-switches) to provide maximum power to a processor or load. A controller optimizes the sequence and charging rate for a hybrid battery to maximize both the charging current and charging speed of the battery, while enabling longer battery life. The hybrid battery comprises a fast charging battery and a high-energy density battery.

Abstract: In some examples, a control unit is configured to adjust charge termination voltage of a rechargeable energy storage device. The control unit is adapted to charge the rechargeable energy storage device to a charge termination voltage where the rechargeable energy storage device has capacity to support peak load but comes close to a system shutdown voltage after supporting peak load. The control unit is also adapted to increase the charge termination voltage if a voltage of the rechargeable energy storage device is near a system shutdown voltage after supporting peak load.

Abstract: A battery that periodically checks an actual battery capacity or energy with charge to a preset voltage (e.g., 4.1 V). The battery then decides the battery capacity or energy. If the capacity or energy is insufficient, then an apparatus in or associated with the battery slightly increases charging voltage to a point where the capacity is sufficient (e.g. from 4.1 V to 4.11 V). The process of periodically checking and slightly increasing charging voltage is performed until charging voltage reaches specification limit (e.g., 4.2 V). The scheme described herein has benefits such as battery longevity can be extended, risk of insufficient energy reserve can be reduced, burst power can be used as long as possible, and/or even higher burst power can be used.

Abstract: Li-metal battery with a pressure chamber to allow uniform pressure on a battery. The pressure chamber is supported by metal plates (such as pressure equalization plate) used to give uniform pressure to the battery. The pressure chamber may include pressured gas, elastic material, spring plate, etc. The outer skin of the pressure chamber is free to bow, restrained at its edges by (metal) skin, but still exerts a uniform pressure on the plate that is compressing the battery cell. The pressure chamber gives uniform pressure to battery, which is used to enable high-energy density battery with, for example, 20% more battery life.

Abstract: An image display device includes: a display unit that displays an image; a right side support and a left side support that support the display unit in an upright state, and are at least partially light-transmissive; a right side first light source and a left side first light source that are disposed in the display unit, and emit light to at least a part of the right side support and the left side support.

Abstract: In some examples, an apparatus includes a controller to monitor voltage of a battery during constant current charging of the battery, and to detect lithium plating of the battery based on a rate of change of the monitored voltage of the battery during constant current charging of the battery. In some examples, a battery module includes a plurality of battery cells connected in parallel, and a controller to determine an impedance of each of the plurality of battery cells, and to disconnect one of the plurality of battery cells from the plurality of battery cells based on a relation of the impedance of the one of the plurality of battery cells with a threshold impedance.

Abstract: An apparatus is provided which comprises: a first circuitry to estimate variation of an internal impedance of a battery; a second circuitry to estimate a high power that the battery can supply for a first time-period, based on the estimated variation of the impedance of the battery; and a third circuitry to facilitate operation of one or more components of the apparatus in accordance with the estimated high power for the first time-period.

Abstract: The present disclosure is directed to systems and methods for improving the rigidity or stiffness of an electronic device chassis or housing using a structural secondary battery. The structural secondary battery includes a compression skin disposed about one or more secondary storage cells. The compression skin exerts a compressive force of at least 0.5 atmospheres on the one or more secondary storage cells. A structural member is bonded to the compression skin. The structural member includes a relatively thin (e.g. 0.1 mm or less), rigid (e.g., Young's Modulus of at least 300 GPa), member, such as a sapphire crystal. The structural member may then be bonded or otherwise detachably or non-detachably affixed to an aperture formed in the electronic device chassis or housing. The bonding of the structural member to the electronic device chassis or housing beneficially improves the stiffness of the chassis or housing.

Abstract: These present disclosure provides a flexible battery comprising a top layer and a bottom layer coupled at a number of attachment points to form chambers within the battery to retain a shape of the battery under an increase in internal pressure. The flexible battery can include an anode and separator and a cathode, where the separator is a flexible polymer.

Abstract: A setting facilitation apparatus (1400) includes a keyword input reception section (1410), a control command selection section (1420), and a specific control registration section (1430) and is used to facilitate setting of specific control in a control system (1001) that controls a control device through sound inputs. The keyword input reception section (1410) receives an input of information corresponding to a keyword. The control command selection section (1420) displays a certain control command to the control device (1010, 1020) on an edit screen (G) and receives selection of the control command. The specific control registration section (1430) registers a keyword (K) input by the keyword input reception section (1410) and the control command selected by the control command selection section (1420) to a specific control (DB 1104T) while associating the keyword and the control command with each other.

Abstract: An apparatus is provided which comprises: a first circuitry to estimate variation of an internal impedance of a battery; a second circuitry to estimate a high power that the battery can supply for a first time-period, based on the estimated variation of the impedance of the battery; and a third circuitry to facilitate operation of one or more components of the apparatus in accordance with the estimated high power for the first time-period.

Abstract: In some examples, a control unit is configured to consider battery heat. The control unit is adapted to provide power from a battery to a system during a peak power mode that includes peak power and off-peak power, and consider heat balance in the battery during the peak power mode by providing peak power so that heat of the battery corresponds to a reference condition heat of the battery.

Abstract: A system and method for a battery cell having an anode and a cathode, and a separator disposed between the anode and the cathode. A conductive layer disposed in the separator facilitates detection of dendrite growth from the anode into the separator, the detection correlative with a reduction in voltage between the anode and the conductive layer. A detection interface component coupled to the conductive layer is configured to facilitate routing of a signal from the conductive layer to a circuit external to the battery cell, the signal indicative of the detection. The battery cell may be part of a battery or battery pack which may be utilized by an electronic device.

Abstract: A case structure includes: a case having an opening at one end side; a cover configured to close the opening; and a pressing and holding portion configured to press and hold a board against the case when the cover applies a force to the board in a state where the board is accommodated in the case and the cover is closed.

Abstract: In some examples, a control unit is configured to adjust charge termination voltage of a rechargeable energy storage device. The control unit is adapted to charge the rechargeable energy storage device to a charge termination voltage where the rechargeable energy storage device has capacity to support peak load but comes close to a system shutdown voltage after supporting peak load. The control unit is also adapted to increase the charge termination voltage if a voltage of the rechargeable energy storage device is near a system shutdown voltage after supporting peak load.