Electrochemical energy store

• US 20050170240A1
• Filed: 01/26/2005
• Published: 08/04/2005
• Est. Priority Date: 02/04/2004
• Status: Abandoned Application

• Current Assignee: Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: Daimler Chrysler Company LLC (Stellantis NV)
• Inventors: Soczka-Guth, Thomas, German, Johann
• Application Number:
  US11/043,353
• Publication Number:
  US 20050170240A1
• Time in Patent Office: Days
• US Class Current: 429/120
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: B60L 58/26 by cooling
• CPC Class Codes: H01M 10/342 Gastight lead accumulators H01M10/121 takes precedence
• CPC Class Codes: H01M 10/345 Gastight metal hydride accumulators
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/643 Cylindrical cells
• CPC Class Codes: H01M 10/6557 arranged between the cells
• CPC Class Codes: H01M 10/6563 with forced flow, e.g. by blowers
• CPC Class Codes: H01M 10/6568 characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• CPC Class Codes: H01M 10/663 the system being an air-conditioner or an engine
• CPC Class Codes: H01M 50/271 Lids or covers for the racks or secondary casings
• CPC Class Codes: H01M 50/317 Re-sealable arrangements
• CPC Class Codes: H01M 50/342 Non-re-sealable arrangements
• CPC Class Codes: H01M 50/682 accommodated in battery or cell casings
• CPC Class Codes: H01M 6/42 Grouping of primary cells into batteries H01M6/40 takes precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

In an exemplary embodiment of the present invention, an electrochemical store comprises a plurality of heat exchange units and a plurality of electrochemical storage cells arranged in an array, alongside one another, and between pairs of the heat exchange unit. The heat exchange units include heat exchange channels for flow of a temperature control fluid. A forward flow distribution channel is coupled to the heat exchange channels for ingress of the temperature control fluid and a return flow distribution channel is coupled to the heat exchange channels for egress of the temperature control fluid flow. Pursuant to a feature of the present invention, a pressure-tight and watertight battery box is arranged to receive and enclose the heat exchange units and the electrochemical storage cells, and the battery box is arranged and configured to mount a water outlet and venting device.

Claims

1. An electrochemical store, which comprises:

a plurality of heat exchange units;

a plurality of electrochemical storage cells arranged in an array, alongside one another, and between pairs of the heat exchange units;

the heat exchange units including heat exchange channels for flow of a temperature control fluid;

a forward flow distribution channel coupled to the heat exchange channels for ingress of the temperature control fluid;

a return flow distribution channel coupled to the heat exchange channels for egress of the temperature control fluid flow; and

a pressure-tight and watertight battery box arranged to receive and enclose the heat exchange units and the electrochemical storage cells;

the battery box being arranged and configured to mount a water outlet and venting device.

2. The electrochemical store of claim 1 wherein the water outlet and venting device comprises a water outlet and venting screw and a water outlet and venting disc.

3. The electrochemical store of claim 2 wherein the water outlet and venting screw and the water outlet and venting disc are coupled to one another by a threaded connection.

4. The electrochemical store of claim 3 wherein the water outlet and venting screw and the water outlet and venting disc are each formed to include transverse holes extending there through, for water egress and venting.

5. The electrochemical store of claim 4 wherein the water outlet and venting disc is arranged within the battery box such that the transverse holes of the water outlet and venting disc are flush with a base portion of the battery box, and the water outlet and venting screw is arranged on the outside of the battery box, and coupled to the water outlet and venting disc by the threaded connection.

6. The electrochemical energy store of claim 4 wherein the water outlet and venting screw is formed to include a water catchment groove.

7. The electrochemical energy store of claim 4 wherein the water outlet and venting screw includes a central blind hole in communication with the transverse holes of the water outlet and venting screw.