Storage element including multiple lithium cells

Patent metadata

Field	Value
Publication number	US-9698445-B2
Application number	US-201314404847-A
Country	US
Kind code	B2
Filing date	May 25, 2013
Priority date	Jun 2, 2012
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A storage element is disclosed including a plurality of lithium cells, which are arranged beside one another as a stack and are clamped via two clamping plates arranged at the ends, the plates being connected to each other via clamping elements, wherein the cell stack consists of prismatic cells inducing a housing and at least one pouch cell, which is accommodated in a cell holder, the external dimension of which corresponds to that of a housing of a prismatic cell.

First claim

What is claimed is:

1. A storage element, comprising:
plural lithium cells arranged as stack adjacent each other; and
clamping plates arranged at respective end sides of the storage element, said lithium cells being clamped to each other via the clamping plates, said clamping plates being connected which each other via clamping elements,
wherein the plural lithium cells comprise different types of lithium cells, said different types of lithium cells comprising prismatic cells and at least one pouch cell having flexible walls and being received in a cell holder constructed as a separate rigid housing closed from all sides, each of the prismatic cells comprising a separate rigid housing, with an outer dimension of the separate rigid housing of the at least one pouch cell corresponding to an outer dimension of the housing of the prismatic cells.

2. The storage element of claim 1 , wherein one or multiple pouch cells are received in the cell holder.

3. The Storage element of claim 1 , wherein the housings of the prismatic cells have contact elements and wherein the cell holder has further contact elements corresponding in construction and position to the contact elements of the prismatic cells.

4. The storage element of claim 1 , further comprising a distance plate arranged between two of the plural lithium cells.

5. The storage element of claim 4 , further comprising a clamping plate and a further said distance plate, said further distance plate being arranged between a respective outermost one of the lithium cells and the clamping plate.

6. The storage element of claim 1 , wherein the clamping elements are configured as clamping bands.

Assignees

• Audi Ag

Inventors

• Wansner Michael
• Winkler Josef

Classifications

• H01M50/227

  Organic material · CPC title

• H01M50/209 Primary

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

• H01M50/211

  adapted for pouch cells · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• Y02E60/122

  Cross-Sectional Technologies · mapped topic