Plate grid of negative plate for lead-acid storage battery

A technology of lead-acid batteries and negative plates, applied in the direction of electrode carriers/collectors, etc., can solve the problems of poor charging and receiving capacity of active materials, small bonding surface of grids and active materials, weight reduction and environmental protection, etc., to achieve benefits Environmental protection, negative electrode sulfation overcoming, weight reduction effect
CN105280924AInactive Publication Date: 2016-01-27SHUANGDENG GRP
3 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHUANGDENG GRP
Publication Date
2016-01-27
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a plate grid of a negative plate for a lead-acid storage battery. The plate grid comprises a tab and a frame, the improvement is that the frame is formed by welding aluminum alloy ribs and a conductive carbon fiber felt, the tab is exposed, the conductive carbon fiber felt is a polyacrylonitrile-based carbon felt, and the gram weight of the conductive carbon fiber felt is 100 to 1520 g / m<2>.mm. The plate grid is few in lead dosage, and is beneficial for weight reduction and environmental protection; particularly during the fabrication of the negative plate, carbon fiber in the conductive carbon fiber felt is in close contact with an active substance, large contact area, low resistance, high utilization rate of the active substance and favorable charging reception are achieved, sulfation is overcome, and the service lifetime of the battery is effectively prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a lead-acid storage battery grid structure, in particular to a negative plate grid structure, belonging to the field of lead-acid storage batteries. Background technique

[0002] With its excellent cost performance, lead-acid batteries are widely used in the fields of backup power supply, energy storage and power supply.

[0003] Although the lead-acid battery technology is quite mature, there are still shortcomings in the lead-acid battery, especially the battery life is not long. The sulfation of the active material of the negative electrode is a common end-of-life failure mode of the battery. This failure mode is closely related to the long-term undercharging of the negative electrode, and the grid structure has a direct impact. The existing negative electrode grid includes tabs and frames, both of which are made of lead alloy. The bonding surface between the grid and the active material is small, the resistance is large, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More