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Battery

A technology of batteries and lithium-ion batteries, which is applied to battery electrodes, secondary batteries, circuits, etc., and can solve problems such as the consumption of metal lithium anodes

Active Publication Date: 2019-12-27
VOLKSWAGEN AG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this battery is that the metallic lithium anode is consumed during cycling as lithium is continuously dissolved and deposited

Method used

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Examples

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Embodiment Construction

[0025] figure 1 A part of the battery 1 is shown. The battery 1 has an electrode layer 2 , a current discharge 3 and a separator 4 . The electrode layer 2 has an active material 5 , wherein the active material 5 has pores 6 . The holes 6 can form channels and cavities. The active material 5 is arranged here between the membrane 4 and the current arrester 3 . The current arrester 3 and the diaphragm 4 extend parallel to one another. The electrode layer 2 preferably has a substantially constant layer thickness. The electrode layer thickness can in particular be greater than 50 μm, in particular greater than 80 μm and preferably 100 μm. Preferably, the electrode layer thickness is in the range between 80 and 120 μm, and the electrode layer thickness can be, for example, 100 or 110 μm.

[0026] The electrode layer 2 is provided with auxiliary channels 7 . The auxiliary channels 7 , 7 a to 7 e are formed in the active material 5 in a punctiform manner. The auxiliary channel...

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Abstract

The invention relates to a battery (1), namely a lithium-ion battery, with an electrode layer (2) and a current conductor (3), wherein the electrode layer has a plurality of auxiliary channels in an active material (5). The battery (1) is improved in that the auxiliary channels (7, 7a and 7e) are formed both at a cathode and at an anode.

Description

technical field [0001] The invention relates to a battery according to the features of the preamble of claim 1 . The invention also relates to a method for producing such a battery according to the features of claim 10 , 11 or 12 . Background technique [0002] A battery (or battery pack) has one or more cells. A single cell has, in particular, an anode, a cathode, a separator and an electrolyte. The electrodes here consist of active material and dischargers. The material in the electrodes is referred to as the active material, in which chemical species change processes, ie energy storage and energy output, take place. The rate C (C-Rate) describes the charge or discharge current (in amperes) normalized to the rated capacity. Nominal capacity is the amount of charge stored in a fully charged cell or battery that can be extracted under defined conditions when discharged. [0003] In conventional battery cells, the active material has a proportion by weight of approximate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/13H01M4/133H01M4/62H01M10/0525H01M10/058
CPCH01M4/13H01M4/133H01M4/62H01M4/625H01M4/626H01M10/0525H01M10/058H01M4/624H01M4/139H01M2004/021H01M4/0414H01M4/0404Y02E60/10Y02P70/50H01M4/045H01M4/049H01M4/366H01M4/525
Inventor M.赫尔曼A.斯佩德尔
Owner VOLKSWAGEN AG