Battery system with heat exchange device

• US 10,059,165 B2
• Filed: 11/10/2016
• Issued: 08/28/2018
• Est. Priority Date: 03/16/2015
• Status: Active Grant

• Current Assignee: Thunder Power New Energy Vehicle Development Company Limited
• Original Assignee: Thunder Power New Energy Vehicle Development Company Limited
• Inventors: Ho, Ming-Hui
• Primary Examiner(s): Park, Lisa S
• Application Number:
  US15/348,490
• Publication Number:
  US 20170057374A1
• Time in Patent Office: 656 Days
• CPC Class Codes: B32B 15/00 Layered products comprising a layer of metal
• CPC Class Codes: B32B 15/01 all layers being exclusively metallic making layered metal workpieces by pressure cladding B23K20/22; making coatings with a metallic material characterised by its composition C23C30/00
• CPC Class Codes: B32B 2605/08 Cars
• CPC Class Codes: B32B 2605/18 Aircraft blades, propellers B32B2603/00
• CPC Class Codes: B32B 3/266 characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
• CPC Class Codes: B32B 7/04 Interconnection of layers
• CPC Class Codes: B32B 7/05 the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection using interposed adhesives or bonding materials applied in spaced arrangements B32B7/14
• CPC Class Codes: B60H 1/00278 for the battery arrangement of batteries B60R16/04
• CPC Class Codes: B60H 1/00392 for electric vehicles having only electric drive means
• CPC Class Codes: B60H 1/00564 of air ducts
• CPC Class Codes: B60H 1/00885 Controlling the flow of heating or cooling liquid, e.g. valves or pumps B60H1/00899 takes precedence; constructions of valves B60H1/00485
• CPC Class Codes: B60H 1/143 the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60K 11/04 Arrangement or mounting of radiators, radiator shutters, or radiator blinds B60K11/085 takes precedence
• CPC Class Codes: B60K 11/085 with adjustable shutters or blinds
• CPC Class Codes: B60K 2001/005 the electric storage means
• CPC Class Codes: B60K 2001/006 the electric motors
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 58/24 for controlling the temperature of batteries
• CPC Class Codes: B60L 58/27 by heating
• CPC Class Codes: B60Y 2200/91 : Electric vehicles
• CPC Class Codes: B60Y 2306/07 : Heating of passenger cabins
• CPC Class Codes: B60Y 2400/112 : Batteries
• CPC Class Codes: C09J 5/00 : Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
• CPC Class Codes: F16B 11/00 : Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding non-electric welding in general B23K; methods of using adhesives independently of the form of the surfaces joined C09J5/00
• CPC Class Codes: F16B 11/006 : by gluing gluing of plastics material B29C65/48
• CPC Class Codes: F16B 3/005 : the key being formed by solidification of injected material joining of preformed parts by applying molten plastics B29C65/40; non-disconnectible pipe joints obtained using a hardenable filler F16L13/11
• CPC Class Codes: F16B 5/04 : by means of riveting rivets F16B19/04
• CPC Class Codes: H01M 10/486 : for measuring temperature
• CPC Class Codes: H01M 10/625 : Vehicles
• CPC Class Codes: H01M 10/63 : Control systems charging or discharging in response to temperature H01M10/44 , H01M10/443; measurement of temperature H01M10/48 , H01M10/486
• 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 2220/20 : Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 7/0018 : using separate charge circuits
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/88 : Optimized components or subsystems, e.g. lighting, actively controlled glasses
• CPC Class Codes: Y10T 428/24347 : From both sides

Abstract

A battery pack is provided including: a plurality of battery cells arranged in multiple battery cell rows; one or more heat exchange spaces; and a device for providing heat exchange to the battery pack. Further, the device includes a heat conduction medium passage arranged in the heat exchange spaces, such that the heat conduction medium passage surrounds multiple battery cells each battery cell row. The heat conduction medium passage is provided with at least a first group of channels and a second group of channels, which are in contact with the surface of each battery cell, and a heat conduction medium is provided in the first group of channels and the second of channels. The heat conduction medium flows in the first group of channels in a direction opposite from the flow of the heat conduction medium in the second group of channels.

Claims

1. A battery system, comprising:

a battery pack, wherein the battery pack includes;

a plurality of battery cells, wherein the plurality of battery cells are arranged in multiple battery cell rows, and each battery cell row comprises multiple battery cells,

a device for providing heat exchange to the battery pack, wherein the device includes a heat conduction medium passage, the heat conduction medium passage comprising at least a first group of channels and a second group of channels, wherein

the first group of channels and the second group of channels are in contact with a surface of each battery cell,

the first group of channels and the second group of channels are each provided with at least one inlet and at least one outlet, such that a heat conduction medium in the first group of channels flows directly into the first group of channels at the same time or substantially at the same as the heat conduction medium in the second group of channels flows directly into the second group of channels in an opposite direction, and wherein the second group of channels and first group of channels are distinct and separate from each other such that the second group of channels and first group of channels are not connected through a turnaround section within a housing containing the plurality of battery cells, and

a heat insulation layer is arranged between the first group of channels and the second group of channels such that the first group of channels and the second group of channels are not in fluid communication with each other;

a sensor to detect a temperature of the battery pack;

a controller configured to determine and send a control signal according to a temperature value detected by the sensor; and

a pump configured to control the flow rate of the heat conduction medium according to the control signal sent by the controller.

2. The battery system of claim 1, wherein the heat insulation layer comprises a thermal insulating material made from at least one of glass fiber, asbestos, rock wool, and aerogel felt.

3. The battery system of claim 1, wherein the first group of channels and the second group of channels are spaced apart, and air in the space between the first group of channels and the second group of channels forms the heat insulation layer.

4. The battery system of claim 1, wherein a flow direction of the heat conduction medium in the first group of channels is opposite to a flow direction of the heat conduction medium in the second group of channels.

5. An electric vehicle, comprising:

an electric motor;

a battery pack configured to power the electric motor, the battery pack including;

a plurality of battery cells, wherein the plurality of battery cells are arranged in multiple battery cell rows, and each battery cell row comprises multiple battery cells,

a device for providing heat exchange to the battery pack, wherein the device includes a heat conduction medium passage, the heat conduction medium passage comprising at least a first group of channels and a second group of channels, wherein

the first group of channels and the second group of channels are in contact with a surface of each battery cell,

the first group of channels and the second group of channels are each provided with at least one inlet and at least one outlet, such that a heat conduction medium in the first group of channels flows directly into the first group of channels at the same time or substantially at the same as the heat conduction medium in the second group of channels flows directly into the second group of channels in an opposite direction, and wherein the second group of channels and first group of channels are distinct and separate from each other such that the second group of channels and first group of channels are not connected through a turnaround section within a housing containing the plurality of battery cells, and

a heat insulation layer is arranged between the first group of channels and the second group of channels such that the first group of channels and the second group of channels are not in fluid communication with each other;

a sensor to detect a temperature of the battery pack;

a controller configured to determine and send a control signal according to a temperature value detected by the sensor; and

a pump configured to control the flow rate of the heat conduction medium according to the control signal sent by the controller.

6. The vehicle of claim 5, wherein the heat insulation layer comprises a thermal insulating material made from at least one of glass fiber, asbestos, rock wool, and aerogel felt.

7. The vehicle of claim 5, wherein the first group of channels and the second group of channels are spaced apart, and air in the space between the first group of channels and the second group of channels forms the heat insulation layer.

8. The vehicle of claim 5, wherein a flow direction of the heat conduction medium in the first group of channels is opposite to a flow direction of the heat conduction medium in the second group of channels.