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Recessed tab for higher energy density and thinner batteries

A battery and electrical contact technology, applied in the direction of battery electrodes, secondary batteries, battery components, etc.

Active Publication Date: 2013-04-24
BLACKBERRY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mobile devices such as handheld devices have limited space for batteries

Method used

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  • Recessed tab for higher energy density and thinner batteries
  • Recessed tab for higher energy density and thinner batteries
  • Recessed tab for higher energy density and thinner batteries

Examples

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Embodiment Construction

[0038] Various means or processes are described below to provide example embodiments of each claimed invention. The embodiments described below do not limit any claimed invention, and any claimed invention may encompass processes or devices other than those described below. The claimed invention is not limited to an apparatus or process having all of the features of any one apparatus or process described below, or to features that are common to multiple or all of the apparatus or processes described below. It is possible that the apparatus or process described below is not an embodiment of any claimed invention. Any invention disclosed in an apparatus or process described below that is not claimed in this document may be the subject of another means of protection, for example, a subsequent patent application (divisional application), and the applicant, inventor or patent It is not the proprietor's intention to disclaim, relinquish protection, or dedicate to the public any suc...

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Abstract

The invention relates to a recessed tab for higher energy density and thinner batteries. Various embodiments are described herein for an electrode assembly for a battery and a method of making the electrode assembly. The electrode assembly comprises an active material layer having a recess formed therein at an outer surface of the active material layer, the recess extending from a side facet of the active material layer toward an interior portion of the active material layer; a current collector layer supported on and in electrical contact with the outer surface of the active material layer; and a tab element supported partially within the recess and in electrical contact with at least one of the active material layer and the current collector layer, the tab element being adapted to provide an electrical connection for the electrode assembly.

Description

technical field [0001] Embodiments described herein relate generally to energy storage elements, and more particularly to battery structures. Background technique [0002] Mobile devices are widely used in daily life. These mobile devices are powered by batteries, which in most cases are rechargeable and in other cases are disposable. In both cases, it is important that these batteries have a high capacity so that they last a long time before having to be recharged or replaced (as the case may be). However, mobile devices, such as handheld devices, have limited space for batteries. It is therefore important to design the battery in a space-efficient manner to deliver the right amount of charge. Contents of the invention [0003] In one aspect, in at least one example embodiment described herein, there is provided an electrode assembly for a battery. The electrode assembly includes: an active material layer, on an outer surface of the active material layer, a recess is ...

Claims

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Application Information

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IPC IPC(8): H01M4/02H01M4/04H01M50/533H01M50/54
CPCH01M2/266Y02E60/122H01M4/0402H01M10/0565H01M10/0585H01M10/0525H01M4/139H01M4/64Y02E60/10H01M50/54Y02P70/50H01M50/533
Inventor 塔哈·沙伯尔·侯赛因·舒塔瓦拉大卫·杰勒德·里奇
Owner BLACKBERRY LTD
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