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Electrochemical energy source and electronic device suitable for bioimplantation

An electronic device, electrochemical technology, applied in the field of electrochemical energy sources, can solve the problems of low power output, inability to transport, limited number and so on

Inactive Publication Date: 2009-08-26
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the known implantable biofuel cell has several significant advantages, the application of the known biofuel cell also has several disadvantages
A major disadvantage of known miniaturized biofuel cells is that they are generally unable to deliver the (peak) power required to power electronic devices coupled to the biofuel cell
Due to the known relatively small power output of biofuel cells, typically on the order of microwatts to milliwatts, the number of current applications is limited

Method used

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  • Electrochemical energy source and electronic device suitable for bioimplantation
  • Electrochemical energy source and electronic device suitable for bioimplantation
  • Electrochemical energy source and electronic device suitable for bioimplantation

Examples

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Embodiment Construction

[0021] figure 1 A schematic cross-sectional view of a first embodiment of a monolithic bioimplantable electrochemical energy source 1 according to the invention is shown. The miniaturized energy source 1 comprises a lithium-ion battery stack 2 of battery anode 3 , solid electrolyte 4 , and battery cathode 5 deposited onto a conductive substrate 6 in which one or more electronic components 7 are embedded. In this example, the substrate 6 is formed from doped silicon, while the cell anode 3 is formed from amorphous silicon (a-Si). Cathode 5 is made of LiCoO 2 Formed, and the solid electrolyte is formed of LiPON. Between the battery stack 2 and the substrate 6 a lithium barrier layer 8 is deposited onto the substrate 6 . In this example, lithium diffusion barrier layer 8 is formed of tantalum. The conductive tantalum layer 8 acts as a chemical barrier, since this layer prevents the lithium ions (or other active species) originally contained in the cell stack 2 from diffusing ...

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Abstract

The invention relates to an electrochemical energy source comprising a rechargeable battery and a biofuel cell, suitable for bioimplantation. The invention also relates to an electronic device suitable for bioimplantation, said device comprising at least one electrochemical energy source according to invention, and at least one electronic component electrically connected to said electrochemical energy source according to the invention.

Description

technical field [0001] The present invention relates to electrochemical energy sources suitable for bioimplantation. The invention also relates to an electronic device suitable for bioimplantation, said device comprising at least one electrochemical energy source according to the invention and at least one electronic component electrically connected to said electrochemical energy source. Background technique [0002] During the twentieth century, energy consumption increased dramatically and there was an uneven energy management. While this demand growth shows no signs of easing (especially in developing countries), there is now a realization of the transience of non-renewable resources and the irreversible damage to the environment. Additionally, there is a trend toward miniaturization and portability of computing and communication devices. These energy demanding applications require small and lightweight power supplies that can sustain operation for extended periods of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/16H01M10/40H01M16/00H01M10/42H01M10/052H01M10/0525H01M10/054H01M10/0562H01M10/36
CPCY02E60/122H01M10/425H01M10/054H01M10/052H01M8/16H01M16/006Y02E60/527H01M10/0525H01M10/0562Y02E60/10Y02E60/50
Inventor R·H·W·皮南伯格P·H·L·诺滕R·A·H·尼森J·H·G·奥普赫特维尔德
Owner KONINKLIJKE PHILIPS ELECTRONICS NV