Storage battery and manufacturing method thereof

A battery and structure technology, applied in the direction of alkaline battery electrodes, battery electrodes, circuits, etc., can solve the problems of internal short circuit of the battery, excessive heating of a single cell, fire or explosion, etc.

Inactive Publication Date: 2018-05-04
ROBERT BOSCH GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Zinc-dendrites are able to grow through the separation device and thus can cause safety issues such as internal short circuit of the battery, excessive heating of the single cell, and even fire or explosion

Method used

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  • Storage battery and manufacturing method thereof
  • Storage battery and manufacturing method thereof

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Embodiment Construction

[0054] figure 1 Shown is a battery 10 according to a first embodiment of the invention comprising an anode 12 , a cathode 14 and an electrolyte 16 arranged between the anode 12 and the cathode 14 . The anode 12 is separated from the electrolyte 16, for example by a separator 18a. The cathode 14 is separated from the electrolyte 16, for example by means of a separator 18b.

[0055] Firstly, the anode 12 has carbon in the unshaped state, for example in the form of graphite, hard carbon, soft carbon or carbon nanotubes. The zinc ions then enter the carbon matrix when the battery cells are charged. The anode thus has a modified carbon capable of intercalating zinc.

[0056] Electrolyte 16 preferably contains 15-30% by weight potassium hydroxide (KOH).

[0057] and figure 1 The difference is that the way to produce the anode 12a of the battery 30 is to first prepare C 16 Zn compound, which is then applied to the separation device 18a as the anode 12a.

[0058] The formula C ...

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PUM

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Abstract

The invention relates to a battery (10, 30), especially a zinc-air battery, comprising an anode (12, 12a), which contains zinc, and a cathode (14) in the form of an oxygen electrode, the anode (12, 12a) additionally containing carbon.

Description

technical field [0001] The invention relates to an accumulator, a method for its production and the use of the generic concepts according to the independent claims. Background technique [0002] In the future, not only in mobile applications such as mobile phones, laptops and computers, but also in vehicles such as hybrid vehicles (English HEV means hybrid electric vehicle) and electric vehicles (English EV means electric vehicle) Battery systems with a high specific energy or energy density are increasingly being used. [0003] These battery systems are currently being further developed in order to meet the safety and service life requirements of the respective application. [0004] Zinc-air batteries in particular are currently targeted by development activity around the world. Zinc-air batteries can achieve higher energy densities or specific energies than lithium-ion batteries. Here, metal zinc (Zn) is used as an anode, and an oxygen electrode is used as a cathode. R...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/24H01M4/587H01M4/96H01M12/06
CPCH01M4/02H01M4/38H01M4/625H01M12/08Y02E60/10
Inventor T·韦尔勒J·费策尔
Owner ROBERT BOSCH GMBH
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