Battery-cell module structure of battery

• US 8,632,906 B2
• Filed: 04/10/2008
• Issued: 01/21/2014
• Est. Priority Date: 05/10/2007
• Status: Expired due to Fees

• Current Assignee: Calsonic Kansei Corporation
• Original Assignee: Calsonic Kansei Corporation
• Inventors: Yoshihara, Toshikazu, Yoshioka, Shinichi
• Primary Examiner(s): Laios, Maria J
• Application Number:
  US12/599,155
• Publication Number:
  US 20100209760A1
• Time in Patent Office: 2,112 Days
• Field of Search: 429 96-100, 429/162, 429/148, 429/153
• US Class Current: 429/162
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/647 Prismatic or flat cells, e.g. pouch cells
• CPC Class Codes: H01M 10/6551 Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• CPC Class Codes: H01M 50/24 adapted for protecting batteries from their environment, e.g. from corrosion thermal insulation H01M10/658
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery-cell structure of a battery is constructed to have a resinous spacer 5 with a frame shape surrounding thick central portions between a battery cell 3 arranged at an upper side and a battery cell 4 arranged at a lower side, and ventilation portions 62 and 64 that are provided in the resinous lower case 6 to communicate the exterior with depressed portions 61 of the resinous lower case 6 and have an up- and down symmetrical shape and size. It is constructed so that the battery cell 3 arranged at the upper side and the battery cell 4 arranged at the lower side are put in a vertical direction between the resinous lower case 6, the spacer 5 and the upper case 2.

Claims

1. A battery-cell module structure of a battery comprising:

a resinous container main body that forms an inner space and has an opening portion that opens upward;

a battery cell consisting of one flat upper side assembled battery and one flat lower side assembled battery that have a thick center portion and a thin peripheral end portion, the flat upper side assembled battery and the flat lower side assembled battery being piled up in a vertical direction in the inner space;

a resinous frame body that surrounds the thick central portions between the thin peripheral end portions of the flat upper side assembled battery arranged at an upper side and the flat lower side assembled battery arranged at a lower side;

a resinous lid part that closes the opening portion of the resinous container main body; and

a ventilating means that is provided on the resinous container main body and has up and down symmetrical shape and size so as to communicate the inner space of the resinous container main body with an exterior of the ventilating means in such a way that the ventilating means cools the flat upper side assembled battery and the flat lower side assembled battery, suppressing a variation in temperature between the flat upper side assembled battery and the flat lower side assembled battery, wherein

the flat upper side assembled battery and the flat lower side assembled battery are put in the vertical direction between the resinous container main body, the resinous frame body and the resinous lid portion, wherein

a part of the resinous lid part is formed as a metal portion, and wherein

the metal portion is contacted with a top surface of the flat upper side assembled battery.

2. The battery-cell module structure of the battery according to claim 1, wherein

a part of the resinous container main body is formed as a metal portion, and wherein

the metal portion is contacted with a bottom surface of the flat upper side assembled battery.

3. The battery-cell module structure of the battery according to claim 2, further comprising:

a positioning portion that is provided on a bottom surface of the inner space of the resinous container main body to project upward; and

a plurality of positioning hole portions that are provided in the flat upper side assembled battery, the flat lower side assembled battery and the resinous frame body, respectively.

4. A battery-cell module structure of a battery comprising:

a resinous container main body that forms an inner space and has an opening portion that opens upward;

a battery cell consisting of one flat upper side assembled battery and one flat lower side assembled battery that have a thick center portion and a thin peripheral end portion, the flat upper side assembled battery and the flat lower side assembled battery being piled up in a vertical direction in the inner space;

a resinous frame body that surrounds the thick central portions between the thin peripheral end portions of the flat upper side assembled battery arranged at an upper side and the flat lower side assembled battery arranged at a lower side;

a resinous lid part that closes the opening portion of the resinous container main body; and

a ventilating means that is provided on the resinous container main body and has up and down symmetrical shape and size so as to communicate the inner space of the resinous container main body with an exterior of the ventilating means in such a way that the ventilating means cools the flat upper side assembled battery and the flat lower side assembled battery, suppressing a variation in temperature between the flat upper side assembled battery and the flat lower side assembled battery, wherein

the flat upper side assembled battery and the flat lower side assembled battery are put in the vertical direction between the resinous container main body, the resinous frame body and the resinous lid portion, wherein

a part of the resinous container main body is formed as a metal portion, and wherein

the metal portion is contacted with a bottom surface of the flat upper side assembled battery.

5. The battery-cell module structure of the battery according to claim 4, further comprising:

a positioning portion that is provided on a bottom surface of the inner space of the resinous container main body to project upward; and

a plurality of positioning hole portions that are provided in the flat upper side assembled battery, the flat lower side assembled battery and the resinous frame body, respectively.