Battery systems, battery modules, and method for cooling a battery module
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-010/50
H01M-010/6555
H01M-010/6556
H01M-010/663
H01M-010/04
H01M-010/48
H01M-010/613
H01M-010/633
H01M-010/6568
H01M-010/6567
H01M-002/10
H01M-010/647
H01M-010/6569
출원번호
US-0433397
(2009-04-30)
등록번호
US-8852778
(2014-10-07)
발명자
/ 주소
Payne, Josh
출원인 / 주소
LG Chem, Ltd.
대리인 / 주소
Buckert Patent & Trademark Law Firm, P.C.
인용정보
피인용 횟수 :
1인용 특허 :
96
초록▼
Battery systems, battery modules, and a method for cooling a battery module are provided. The battery module includes a battery cell having a first side and a second side, and a first graphite sheet disposed on the first side of the battery cell that conducts heat energy from the battery cell into t
Battery systems, battery modules, and a method for cooling a battery module are provided. The battery module includes a battery cell having a first side and a second side, and a first graphite sheet disposed on the first side of the battery cell that conducts heat energy from the battery cell into the first graphite sheet to cool the battery cell. The battery module further includes a first cooling manifold coupled to the first graphite sheet that conducts heat energy from the first graphite sheet into the first cooling manifold. The first cooling manifold is further configured to receive a fluid that flows therethrough to conduct heat energy from the first cooling manifold into the fluid.
대표청구항▼
1. A battery module, comprising: a battery cell having a generally rectangular-shaped body portion, the generally rectangular-shaped body portion having a first flat side and a second flat side;a first graphite sheet having a first flat panel portion and a first extension portion, the first flat pan
1. A battery module, comprising: a battery cell having a generally rectangular-shaped body portion, the generally rectangular-shaped body portion having a first flat side and a second flat side;a first graphite sheet having a first flat panel portion and a first extension portion, the first flat panel portion disposed on the first flat side of the battery cell that conducts heat energy from the battery cell into the first graphite sheet to cool the battery cell, the first extension portion extending from a first end of the first flat panel portion;a first cooling manifold thermally coupled to the first graphite sheet that conducts heat energy from the first graphite sheet into the first cooling manifold, the first cooling manifold having a groove extending therein configured to receive the first extension portion therein, the first flat panel portion of the first graphite sheet being disposed perpendicular to the first cooling manifold, the first flat side of the battery cell being disposed perpendicular to the first cooling manifold, the first cooling manifold further configured to receive a fluid that flows therethrough to conduct heat energy from the first cooling manifold into the fluid; anda second graphite sheet having a second flat panel portion and a second extension portion, the second flat panel portion disposed on the second flat side of the battery cell that conducts heat energy from the battery cell into the second graphite sheet to cool the battery cell, the second extension portion extending from a first end of the second flat panel portion; anda second cooling manifold thermally coupled to the second graphite sheet that conducts heat energy from the second graphite sheet into the second cooling manifold, the battery cell and the first and second graphite sheets being disposed between the first and second cooling manifolds, the second cooling manifold having a groove extending therein configured to receive the second extension portion therein, the second flat panel portion being disposed perpendicular to the second cooling manifold, the first flat side of the battery cell being disposed perpendicular to the second cooling manifold, the second cooling manifold further configured to receive the fluid that flows therethrough to conduct heat energy from the second cooling manifold into the fluid. 2. The battery module of claim 1, wherein the first graphite sheet has a polyethylene coating thereon. 3. The battery module of claim 1, wherein the first graphite sheet has a thickness in range of 0.5 mm to 2.0 mm. 4. The battery module of claim 1, wherein the first cooling manifold has a housing and a plurality of flow channels within the housing that define a serpentine flow path within the housing, the fluid flowing through the serpentine flow path. 5. The battery module of claim 4, wherein the first cooling manifold is constructed from at least one of aluminum, copper, silver, and gold. 6. A battery system, comprising: a battery module having a battery cell, first and second graphite sheets, and first and second cooling manifolds;the battery cell having a generally rectangular-shaped body portion, the generally rectangular-shaped body portion having a first side and a second side;the first graphite sheet having a first flat panel portion and a first extension portion, the first flat panel portion disposed on the first side of the battery cell and conducts heat energy from the battery cell into the first graphite sheet to cool the battery cell, the first extension portion extending from a first end of the first flat panel portion, the first extension portion having a first portion, a second portion, and a third portion; the first portion extending from an end of the first flat panel portion in a first direction substantially perpendicular to the first flat panel portion, the second portion extending from an end of the first portion in a second direction substantially parallel to the first flat panel portion, the third portion extending from an end of the second portion in a third direction substantially parallel to the first portion, the first flat panel portion of the first graphite sheet being disposed perpendicular to the first cooling manifold;the first cooling manifold is thermally coupled to the first graphite sheet and conducts heat energy from the first graphite sheet into the first cooling manifold, the first cooling manifold having a groove extending therein configured to receive the first extension portion therein, the first cooling manifold further configured to receive a refrigerant that flows therethrough to conduct heat energy from the first cooling manifold into the refrigerant;the second graphite sheet having a second flat panel portion and a second extension portion, the second flat panel portion disposed on the second side of the battery cell that conducts heat energy from the battery cell into the second graphite sheet to cool the battery cell, the second extension portion extending from a first end of the second flat panel portion, the second flat panel portion being disposed perpendicular to the second cooling manifold and parallel to the first flat panel portion;the second cooling manifold thermally coupled to the second graphite sheet that conducts heat energy from the second graphite sheet into the second cooling manifold, the second cooling manifold having a groove extending therein configured to receive the second extension portion therein, the second cooling manifold further configured to receive the refrigerant that flows therethrough to conduct heat energy from the second cooling manifold into the refrigerant;a condenser fluidly coupled to the battery module, the condenser configured to receive the refrigerant from the first and second cooling manifolds of the battery module and to extract heat energy from the refrigerant, the condenser further fluidly coupled to a compressor and configured to route the refrigerant to the compressor; andthe compressor further fluidly coupled to the first cooling manifold of the battery module, the compressor configured to pump the refrigerant into the first and second cooling manifolds. 7. The battery system of claim 6, further comprising: a temperature sensor configured to generate a first signal indicative of a temperature of the battery module; anda microprocessor operably coupled to the temperature sensor, the microprocessor configured to generate a second signal to induce the compressor to pump the refrigerant into the first and second cooling manifolds when the first signal indicates the temperature of the battery module is greater than a threshold temperature level. 8. A battery system, comprising: a battery module having a battery cell, first and second graphite sheets, and first and second cooling manifolds;the battery cell having a generally rectangular-shaped body portion, the generally rectangular-shaped body portion having a first side and a second side;the first graphite sheet having a first flat panel portion and a first extension portion, the first flat panel portion disposed on the first side of the battery cell and conducts heat energy from the battery cell into the first graphite sheet to cool the battery cell, the first extension portion extending from a first end of the first flat panel portion, the first flat panel portion of the first graphite sheet being disposed perpendicular to the first cooling manifold;the first cooling manifold is thermally coupled to the first graphite sheet and conducts heat energy from the first graphite sheet into the first cooling manifold, the first cooling manifold having a groove extending therein configured to receive the first extension portion therein, the first extension portion having a first portion, a second portion, and a third portion; the first portion extending from an end of the first flat panel portion in a first direction substantially perpendicular to the first flat panel portion, the second portion extending from an end of the first portion in a second direction substantially parallel to the first flat panel portion, the third portion extending from an end of the second portion in a third direction substantially parallel to the first portion, the first cooling manifold further configured to receive a coolant therethrough to conduct heat energy from the first cooling manifold into the coolant;the second graphite sheet having a second flat panel portion and a second extension portion, the second flat panel portion disposed on the second of the battery cell that conducts heat energy from the battery cell into the second graphite sheet to cool the battery cell, the second extension portion extending from a first end of the second flat panel portion, the second flat panel portion being disposed perpendicular to the second cooling manifold and parallel to the first flat panel portion;the second cooling manifold thermally coupled to the second graphite sheet that conducts heat energy from the second graphite sheet into the second cooling manifold, the second cooling manifold having a groove extending therein configured to receive the second extension portion therein, the second cooling manifold further configured to receive the coolant that flows therethrough to conduct heat energy from the second cooling manifold into the coolant;a heat exchanger fluidly coupled to the battery module, the heat exchanger configured to receive the coolant from the first and second cooling manifolds of the battery module therein and to extract heat energy from the coolant flowing therethrough;a cold plate fluidly coupled to the heat exchanger, the cold plate configured to extract heat energy from the coolant flowing therethrough;a reservoir fluidly coupled between the cold plate and a pump, the reservoir configured to receive the coolant from the cold plate and to route the coolant to the pump; andthe pump further fluidly coupled to the first and second cooling manifolds of the battery module, the pump configured to pump the coolant from the reservoir into the first and second cooling manifolds. 9. The battery module of claim 1, wherein the first cooling manifold has a housing with a plurality of flow channels therein, the plurality of flow channels fluidly communicating with one another, the fluid flowing through the plurality of flow channels to conduct the heat energy from the first cooling manifold into the fluid. 10. The battery system of claim 6, wherein the first cooling manifold has a housing with a plurality of flow channels therein, the plurality of flow channels fluidly communicating with one another, the refrigerant flowing through the plurality of flow channels to conduct the heat energy from the first cooling manifold into the refrigerant. 11. The battery system of claim 6, wherein the first cooling manifold has a housing with a serpentine flow path therein, the refrigerant flowing through the serpentine flow path to conduct the heat energy from the first cooling manifold into the refrigerant. 12. The battery system of claim 8, wherein the first cooling manifold has a housing with a plurality of flow channels therein, the plurality of flow channels fluidly communicating with one another, the coolant flowing through the plurality of flow channels to conduct the heat energy from the first cooling manifold into the coolant. 13. The battery system of claim 8, wherein the first cooling manifold has a housing with a serpentine flow path therein, the coolant flowing through the serpentine flow path to conduct the heat energy from the first cooling manifold into the coolant. 14. The battery system of claim 8, wherein the first and second sides of the generally rectangular-shaped body portion comprise first and second flat sides, respectively. 15. The battery module of claim 1, wherein the first extension portion includes a first portion, a second portion, and a third portion; the first portion extending from an end of the first flat panel portion in a first direction substantially perpendicular to the first flat panel portion, the second portion extending from an end of the first portion in a second direction substantially parallel to the first flat panel portion, the third portion extending from an end of the second portion in a third direction substantially parallel to the first portion. 16. The battery module of claim 1, wherein the first and second cooling manifolds extend substantially parallel to one another, and extend perpendicular to the first flat side of the first graphite sheet and perpendicular to the first flat side of the second graphite sheet. 17. The battery system of claim 6, wherein the first and second cooling manifolds extend substantially parallel to one another, and extend perpendicular to the first side of the first graphite sheet and perpendicular to the first side of the second graphite sheet, the battery cell being disposed between the first and second cooling manifolds. 18. The battery system of claim 8, wherein the first and second cooling manifolds extend substantially parallel to one another, and extend perpendicular to the first side of the first graphite sheet and perpendicular to the first side of the second graphite sheet, the battery cell being disposed between the first and second cooling manifolds.
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