Microsoft Technology Licensing, LLC

Minsoo Kim

Gregory Scott Yoder

Wei Guo

Gregory Nielsen

Donghwi Kim

Timothy Allen Jakoboski

Rajagopal Venkatachalam

Stephen Clifford Cooper

Mika Juhani Rintamaeki

Manish Shah

Ceceli Ann Wilhelmi

Siddharth Bhopte

Daniel Joseph Dummer

Karan Kacker

Kai-Yi Lin

Manish K Shah

Rajagopal K Venkatachalam

A dynamic peak power management system may prevent brownouts while improving performance and user experience compared to conventional techniques. A current threshold may be set below the maximum current capability (Imax) of a battery. If the current drawn from the battery exceeds the current threshold repeatedly, then system components may be throttled to decrease their peak power usage. If the current drawn from the battery stays below the current threshold for some time, then system components may be unthrottled to improve performance. This dynamic adaptable technique for managing peak power does not unnecessarily sacrifice performance by preemptively throttling system components to avoid the rare worst-case scenario where power spikes of system components perfectly align in time.

Dynamic peak power control

A computing device is disclosed. The computing device has a frame including a recessed battery compartment, the recessed battery compartment having a rigid back surface. The computing device further has a closure member having a rigid portion and a flexible portion, wherein a periphery of the closure member is coupled to a peripheral edge of the recessed battery compartment, the flexible portion to permit the rigid portion to move relative to the frame. The computing device further has a battery coupled to one or more of the battery compartment and the closure member, the battery oriented between and substantially adjacent to the rigid back surface of the battery compartment and the closure member.

Flexible battery containment

Enhanced battery edge detection devices, systems, and techniques are described herein. During an inspection process, an inspection system controls one or more non-visible light sources to illuminate a battery installed in an electronic device. The illumination activates a reflective pigment applied to at least a portion of an edge of the battery. The inspection system controls one or more cameras to capture at least one image of the illuminated battery installed in the electronic device. The at least one image is processed to detect the edge of the battery and to measure a gap size between the edge of the battery and a region of the electronic device proximate the edge of the battery. The electronic device and battery are flagged for further inspection if the measured gap size is below a threshold indicative of a zero gap event.

Enhanced battery edge detection

A multi-cell battery pack includes adjacent thin-film battery cells electrically coupled to one another with a conductive battery cell connection tab. The conductive battery cell connection tab is folded at a deflection point separating a first aperture in a first portion from a second aperture in a second portion. The first aperture and the second aperture are aligned with one another along an axis while the first portion and the second portion are positioned to rest adjacent to opposite surfaces of a first thin-film battery cell. In this position, the first portion and the second portion electrically couple a first thin-film battery cell to a second thin-film battery cell in a same battery cell stack.

Folding tab for ultra-thin battery cell connection

Techniques for battery management of a device having multiple batteries are described herein. In one or more implementations, management for increased battery reliability involves assessing a combination of factors that influence a control policy for multiple batteries in a battery system. Based on the assessment, values of control parameters for power management of the battery system are set to reflect a tradeoff between performance and reliability. Then, at least one of battery utilization or charge current distribution is controlled in dependence upon the values that are set. Control of the battery system can be based in part upon differences in cycle counts for multiple batteries of a battery system for a device, such that cycle counts of the multiple batteries are managed for improved reliability.

Battery management in a device with multiple batteries

Battery enclosures and electronic devices having a battery enclosure are described herein. In one example, a battery enclosure includes a shell, a battery positioned within an internal volume of the shell, and a fire-retardant composition positioned on an outer surface of the shell, a first inner surface of the shell, between the first inner surface of the shell and the battery, or a combination thereof. In certain examples, the shell and/or fire-retardant composition are configured to provide a thermal seal or protection barrier between components (e.g., a battery) positioned within the battery enclosure and components of the electronic device positioned outside of the battery enclosure.

Battery enclosures in electronic devices

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Issaquah, WA, United States of America

Minsoo Kim