CN220692168U

CN220692168U - High-capacity battery module

Info

Publication number: CN220692168U
Application number: CN202321380614.8U
Authority: CN
Inventors: 唐通
Original assignee: Sichuan Xintang New Energy Science & Technology Co ltd
Current assignee: Sichuan Xintang New Energy Science & Technology Co ltd
Priority date: 2023-06-01
Filing date: 2023-06-01
Publication date: 2024-03-29
Anticipated expiration: 2033-06-01

Abstract

The utility model discloses a method for preparing a composite material, which comprises the following steps: the utility model provides a large capacity battery module, includes the electric core casing, be provided with the installation department on the electric core casing, install the multiunit blade module on the installation department, multiunit blade module establishes ties each other, the blade module comprises a plurality of polar plates, the polar plate both sides are provided with the utmost point ear. The utility model has the beneficial effects that: compared with the prior battery module, the specific energy of the battery module can be greatly improved compared with the prior battery module.

Description

High-capacity battery module

Technical Field

The utility model relates to the technical field of new energy batteries, in particular to a high-capacity battery module.

Background

The LFP280AH battery module developed and produced by the company is composed of 12 battery cells, 24 nuts, 12 temperature sensors and 12 voltage sensors. Due to the special process of the battery and the high-safety polyethylene material shell, the total mass of the battery core with the same capacity exceeds 0.85KG (exceeds about 20%), the total mass is 95KG, and the electric quantity is as follows: 10.8 degrees, specific energy of only 113.4WH/KG. Compared with the optimal domestic modules with specific energy more than 131WH/KG, the energy-saving module has larger gap. Although the energy-saving device has the advantages of larger power, reliability, safety, long service life and the like, the market popularization is influenced by the lower specific energy index. And the thicker plastic shell also has a certain influence on the heat dissipation effect.

Therefore, it is necessary to provide a high-capacity battery module, which can greatly improve specific energy compared with the conventional battery module.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a high-capacity battery module, and compared with the original battery module, the specific energy of the high-capacity battery module can be greatly improved.

The aim of the utility model is realized by the following technical scheme: the utility model provides a large capacity battery module, includes the electric core casing, be provided with the installation department on the electric core casing, install the multiunit blade module on the installation department, multiunit blade module establishes ties each other, the blade module comprises a plurality of polar plates, the polar plate both sides are provided with the utmost point ear.

At least one cooling piece is arranged on the battery cell shell.

The cooling piece is a fan.

BMS chips are arranged on the battery cell shell.

And a pole column is arranged on the battery cell shell.

The beneficial effects of the utility model are as follows: the specific energy is 169.5mah/kg, the specific energy by weight is 144.7wh/kg, and the specific energy is 11.4% higher than the optimal specific energy (131 wh/kg) in China, and the specific energy by volume is improved: 320.1wh/L, which is 22.5% higher than the domestic optimal volumetric specific energy (392.1 wh/L), not only internal resistance occupies the international leading level, but also specific energy reaches the leading level.

Drawings

FIG. 1 is a schematic diagram of a plate connection;

FIG. 2 is a schematic diagram of a cell housing;

FIG. 3 is a schematic diagram of the present utility model;

in the figure, 1-cell shell, 2-blade module, 3-polar plate, 4-tab, 5-fan, 6-BMS chip, 7-installation department, 8-polar post.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the following description, the terms "left", "right", "upper", "lower", "front", "rear", "inner" and "outer" are relative terms, and are not intended to be exhaustive.

A high-capacity battery module, referring to fig. 1 to 3, includes a battery cell case 1. The left side of the battery cell casing 1 is provided with two fans 5 for cooling, and the right side is provided with two BMS chips 6 for charge and discharge management. The battery core shell 1 is also provided with a pole 8, and the pole 8 is connected with the mounting part 7.

The cell casing 1 is provided with a mounting part 7. The mounting part 7 is provided with a plurality of groups of mutually serially connected blade modules 2. The blade module 2 is composed of a plurality of pole plates 3. And two sides of the polar plate 3 are provided with polar lugs 4.

The parameters of the polar plate 3 are 800Ah/3.2V/2.56KWH, and the blade module 2 consists of 50 layers of polar plates 3, and the dimensions are as follows: length 620 x width 320 x thickness 25.0mm. The total capacity of the utility model is 800Ah, the weight is 15.1KG, the specific energy is 169.5mah/KG, the DC internal resistance is 0.05 mI, and the overall density is 1.8.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The high-capacity battery module is characterized by comprising a battery cell shell (1), wherein an installation part (7) is arranged on the battery cell shell (1), a plurality of groups of blade modules (2) are installed on the installation part, the blade modules (2) are mutually connected in series, the blade modules (2) are composed of a plurality of polar plates (3), and polar lugs (4) are arranged on two sides of each polar plate (3);

the parameters of the polar plate (3) are 800Ah/3.2V/2.56KWH, and the blade module (2) consists of 50 layers of polar plates (3) with the following dimensions: length 620 x width 320 x thickness 25.0mm; the total capacity of the high-capacity battery module is 800Ah, the weight is 15.1KG, the specific energy is 169.5mah/KG, the direct current internal resistance is 0.05 mOI, and the overall density is 1.8.

2. The high-capacity battery module according to claim 1, wherein: at least one cooling piece is arranged on the battery cell shell (1).

3. The high-capacity battery module according to claim 2, wherein: the cooling part is a fan (5).

4. The high-capacity battery module according to claim 1, wherein: BMS chip (6) is arranged on the battery cell shell (1).

5. The high-capacity battery module according to claim 1, wherein: and a pole column (8) is arranged on the battery cell shell (1).