阅读说明：本技术 一种锂电池电极结构及锂电池 (Lithium battery electrode structure and lithium battery ) 是由 钟东龙 于 2020-05-22 设计创作，主要内容包括：本公开提供了一种锂电池电极结构及具有该锂电池电极结构锂电池,该锂电池电极结构包括：正极板及两个分别连接在正极板两侧的负极板；正极板与每个负极板之间均夹设有隔膜,正极板朝向负极板的表面均分别开设有多个凹槽一；多个凹槽一呈蜂窝状分布,多个凹槽一内均填充有正极材料；每个负极板朝向正极板的表面均分别开设有多个凹槽二；多个凹槽二呈蜂窝状分布,多个凹槽二内均填充有负极材料。与现有技术相比,极大地减少了隔膜数量,从而可填充更多的正极材料和负极材料,进而提高锂电池的能量密度；因正极材料与正极板的接触面数量以及负极材料与负极板的接触面数量均增多,可有效减少接触电阻,并能避免正极材料和负极材料脱落。(The utility model provides a lithium cell electrode structure and have this lithium cell electrode structure lithium cell, this lithium cell electrode structure includes: the positive plate and the two negative plates are respectively connected to the two sides of the positive plate; a diaphragm is clamped between the positive plate and each negative plate, and a plurality of first grooves are respectively formed in the surfaces, facing the negative plates, of the positive plate; the first grooves are distributed in a honeycomb shape, and positive electrode materials are filled in the first grooves; a plurality of grooves II are respectively formed in the surface, facing the positive plate, of each negative plate; the second grooves are distributed in a honeycomb shape, and the negative electrode materials are filled in the second grooves. Compared with the prior art, the number of the diaphragms is greatly reduced, so that more anode materials and more cathode materials can be filled, and the energy density of the lithium battery is improved; because the contact surface quantity of the positive electrode material and the positive electrode plate and the contact surface quantity of the negative electrode material and the negative electrode plate are increased, the contact resistance can be effectively reduced, and the falling of the positive electrode material and the negative electrode material can be avoided.)

1. An electrode structure for a lithium battery, comprising: the positive plate (3) and the two negative plates (1) are respectively connected to two sides of the positive plate (3); a diaphragm (2) is clamped between the positive plate (3) and each negative plate (1), and a plurality of first grooves (31) are respectively formed in the surfaces, facing the negative plates (3), of the positive plate (3); the first grooves (31) are distributed in a honeycomb shape, and positive electrode materials (4) are filled in the first grooves (31); a plurality of grooves II (11) are respectively formed in the surface, facing the positive plate (3), of each negative plate (3); the second grooves (11) are distributed in a honeycomb shape, and the negative electrode materials (5) are filled in the second grooves (11).

2. The lithium battery electrode structure as claimed in claim 1, wherein the cross section of the first groove (31) has a regular hexagonal shape.

3. The lithium battery electrode structure as claimed in claim 1, wherein the cross-section of the second groove (11) has a regular hexagonal shape.

4. A lithium battery, comprising: a lithium battery electrode structure as claimed in any one of claims 1 to 3.

Technical Field

The disclosure relates to the field of assembly type buildings, in particular to a lithium battery electrode structure and a lithium battery.

Background

At present, the key factor for restricting the development of new energy electric automobiles is that the energy density of lithium batteries is low and is about 120 watt-hour/kilogram. An electric automobile with a endurance mileage of 500 km needs to be provided with 700 kg of lithium batteries, and heavy lithium batteries are arranged on a new energy electric automobile to consume a large amount of electric energy, so that how to increase the energy density of the lithium batteries is a technical problem to be solved urgently by technical personnel in the field.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present disclosure provides an electrode structure of a lithium battery and a lithium battery.

According to an aspect of the present disclosure, a lithium battery electrode structure includes: the positive plate and the two negative plates are respectively connected to two sides of the positive plate; a diaphragm is clamped between the positive plate and each negative plate, and a plurality of first grooves are respectively formed in the surface, facing the negative plates, of the positive plate; the first grooves are distributed in a honeycomb shape, and positive electrode materials are filled in the first grooves; a plurality of grooves II are formed in the surface, facing the positive plate, of each negative plate respectively; the second grooves are distributed in a honeycomb shape, and the second grooves are filled with negative electrode materials.

According to at least one embodiment of the present disclosure, the cross section of the first groove is in a regular hexagonal shape.

According to at least one embodiment of the present disclosure, the cross section of the second groove is in a regular hexagonal shape.

A lithium battery, comprising: the lithium battery electrode structure of any one of the preceding claims.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is an exploded schematic view of a lithium battery electrode structure according to an embodiment of the present disclosure.

Fig. 2 is a schematic diagram of a positive plate in a pre-lithium battery electrode structure according to an embodiment of the present disclosure.

Fig. 3 is a sectional view a-a in fig. 2.

Fig. 4 is a schematic view of a negative plate in an electrode structure of a pre-lithium battery according to an embodiment of the present disclosure.

Fig. 5 is a sectional view B-B in fig. 4.

Reference numerals:

1-a negative plate; 11-groove two; 2-a separator; 3-positive plate; 31-groove one; 4-a positive electrode material; 5-negative electrode material.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.