A battery half cell, a battery and their manufacture
A half-battery and battery technology, applied in the field of micro-batteries, can solve the problems of battery short circuit, inability to bear mechanical load, low insulation capacity, etc., and achieve the effect of high specific energy density and gravimetric energy density
Inactive Publication Date: 2015-06-24
SWEREA SICOMP
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
A disadvantage of this battery electrode is that it cannot take mechanical loads
Another disadvantage is the low insulation provided by the second case, which may cause a short circuit in the battery
Method used
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[0058] Before the present invention is disclosed and described in detail, it is to be understood that this invention is not limited to the particular compounds, configurations, method steps, substrates and materials disclosed herein since such compounds, configurations, method steps, substrates and materials may slightly changed. It is also to be understood that the terminology employed herein is for the purpose of describing particular embodiments only and is not intended to be limiting, as the scope of the invention will be defined by the appended claims and their equivalents.
[0059] It must be noted that, as used in this specification and the appended claims, the singular forms "a", "an" and "the" include plural referents unless the context otherwise requires Explain clearly.
[0060] If not otherwise defined, terms and scientific terms used herein are intended to have the meanings commonly understood by those skilled in the art to which this invention belongs.
[0061]...
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Abstract
There is provided a battery and battery half cell comprising at least one carbon fiber as negative electrode, said carbon fiber comprising a plurality of layers with carbon atoms having graphite structure, said plurality of layers having an ability of intercalating metal ions, said carbon fiber at least partially coated with at least one electrically insulating polymer layer acting as an electrolyte, wherein said insulating polymer layer has been applied with an electro-driven polymerization reaction, wherein said insulating polymer layer is permeable for metal ions, said insulating polymer layer having a stiffness of at least 0.5 MPa, said insulating polymer layer having an ionic conductivity of at least 10−10 S / m and an electrical resistivity of at least 1010Ω m, said insulating layer has a thickness in the interval 10-200 nm. Advantages include possibility to utilize thin layers of electrolytes without creating large ohmic losses, structural batteries can comprise carbon fibers.
Description
technical field [0001] The present invention generally relates to battery half-cells and batteries based on commercial carbon fibers coated with polymer electrolytes as negative electrodes. The design of the battery is scalable. In particular a microbattery is envisaged. [0002] The design for microbatteries is fully scalable and can also be used for larger batteries. Background technique [0003] The traditional design of batteries or microbatteries is based on a sandwich structure consisting of thin-film electrodes and a solid electrolyte. Although this type of structure is relatively easy to fabricate using various film formation techniques, if the film is made too thick, it can lead to low areal energy density due to the limited possibility of utilizing the full depth of the electrode. Another limitation arises from the solid electrolyte, which together with the diffusivity in the electrodes determines the rate performance of the cell. [0004] To overcome these lim...
Claims
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IPC IPC(8): H01M4/133H01M4/1393H01M4/36H01M4/583
CPCH01M4/133H01M4/1393H01M4/587H01M10/0525H01M4/0466H01M50/46H01M4/366H01M4/5825H01M2300/0082H01M10/0565Y02E60/10Y02P70/50Y02T10/70H01M4/583
Inventor 列夫·艾丝珀亚历山大·卑斯麦戈兰·林德伯格西蒙·雷乔马尔卡托尼·卡尔森玛利亚·谢尔
Owner SWEREA SICOMP