Cell module that stores electrical energy, battery and housing

Patent metadata

Field	Value
Publication number	US-11322809-B2
Application number	US-201615767761-A
Country	US
Kind code	B2
Filing date	Sep 26, 2016
Priority date	Oct 16, 2015
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

A cell module stores electrical energy, a battery has such a cell module and a module housing for such a cell module. The module housing includes an internal space in which n cells each having at least one positive and at least one negative electrode are arranged. In this case, n≥2 and the module housing here has at least three external electrical connection poles. The battery includes at least two such cell modules. The module housing includes at least three apertures through which electrical conductors are guided from the inside of the module housing to the outside.

First claim

The invention claimed is:

1. A battery comprising first and second cell modules, each cell module comprising:
a module housing consisting of metal and having a first and a second positive external electrical connection pole and a first and a second negative external electrical connection pole, and
n identical cells each having at least one positive and at least one negative electrode arranged within the module housing,
wherein n≥2, and the n cells have a common electrolyte system, and
the first and second positive external electrical connection poles connect to positive electrodes of the n cells, the first and the second negative external electrical connection poles connect to negative electrodes of the n cells, the two first connection poles belong to a first electrical circuit, and the two second connection poles belong to a second electrical circuit,
wherein the first and second cell modules are interconnected with one another in series or in parallel by the external electrical poles,
a first cell having at least one first positive and at least one first negative electrode and a second cell having at least one second positive and at least one second negative electrode are arranged within the module housing,
the at least one first positive electrode electrically connects to the first positive external electrical connection pole.

2. The battery as claimed in claim 1 , wherein at least one of said first and second cell modules comprises n battery or capacitor cells as the n cells.
the at least one first negative electrode electrically connects to the first negative external electrical connection pole,
the at least one second positive electrode electrically connects to the second positive external electrical connection pole,
the at least one second negative electrode electrically connects to the second negative external electrical connection pole, and
the module housing is one of the electrical connection poles.

3. The battery comprising the first and second cell modules as claimed in claim 1 , wherein the first positive external electrical connection pole of the first cell module electrically connects to the first negative external electrical connection pole of the second cell module, and the second positive external electrical connection pole of the first cell module electrically connects to the second negative external electrical connection pole of the second cell module.

4. The battery as claimed in claim 3 , comprising m cell modules connected in series, wherein m is 12 and adjacent cell modules are each interconnected like the first and the second cell modules.

5. The battery as claimed in claim 1 , comprising at least one cell based on C//NMC (Li nickel-manganese-cobalt) and/or based on C//LFP (Li iron phosphate).

Assignees

• Varta Microbattery Gmbh
• Vw Kraftwerk Gmbh

Inventors

• Holl Konrad

Classifications

• H01M10/052

  Li-accumulators · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M50/229

  Composite material consisting of a mixture of organic and inorganic materials · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title

• H01M50/512

  Connection only in parallel · CPC title