Thin shell lead-acid battery and its manufacturing method

A lead-acid battery, single battery technology, applied in the direction of lead-acid battery, lead-acid battery electrode, lead-acid battery construction, etc., to achieve the effect of good shape design plasticity, good sealing, and improving cycle efficiency

Active Publication Date: 2014-12-24
SHENZHEN CENT POWER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] The technical problem to be solved by the present invention is to provide a lead-acid battery with a thin shell for the above defects of the existing lead-acid battery, using a soft and thin plastic shell as the battery shell, which reduces the waste of materials and space for the shell; at the same time ensures Oxygen that is not recombined in time and consumed during the charging and discharging process of the battery will not accumulate and cause the shell to bulge

Method used

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  • Thin shell lead-acid battery and its manufacturing method
  • Thin shell lead-acid battery and its manufacturing method
  • Thin shell lead-acid battery and its manufacturing method

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Embodiment approach

[0058] Furthermore, as a preferred implementation of the thin case lead-acid battery provided by the present invention, in this embodiment, 2V is used as the design specification of a finished unit.

[0059] Further, see Figure 8, as a specific embodiment of the thin-case lead-acid battery provided by the present invention, the thin-case lead-acid battery is formed by connecting at least two single cells 1 in groups, and one of the single cells 1 They are connected in series, or in parallel, or combined in series and parallel. In this embodiment, the design voltage of the single battery 1 is 2V, so it can be matched according to the capacity and internal resistance of the 2V battery, and connected into combined batteries with different output voltages or currents to meet different conditions. For example, battery packs with even voltages such as 4V, 6V, 8V, and 12V can be matched to further improve the consistency of the battery pack and prolong the service life of the batte...

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Abstract

Belonging to the technical field of chemical battery production, the invention provides a thin shell lead-acid battery and its manufacturing method. The thin shell lead-acid battery includes at least one single battery, which comprises a shell, multiple positive electrode plates and multiple negative electrode plates arranged in the shell at intervals, as well as electrolyte. A partition is disposed between a neighbouring positive electrode plate and negative electrode plate. All the positive electrode plates are connected by a positive busbar, and all the negative electrode plates are connected by a negative busbar. The positive busbar and the negative busbar are respectively connected to a positive column and a negative column. The shell of the single battery is a soft and thin plastic shell. The negative electrode plates are at least 2mm higher or wider than the positive electrode plates, and the capacity ratio of the positive electrode plates to the negative electrode plates is greater than 1.1. The thin shell lead-acid battery provided in the invention has the advantages of low production cost, high specific energy, high space utilization, and good plasticity. And the manufacturing method of the thin shell lead-acid battery has the characteristics of simple production process and flexible design.

Description

technical field [0001] The invention belongs to the technical field of chemical battery production, and more specifically relates to a lead-acid battery with a thin casing and a manufacturing method thereof. Background technique [0002] The technical principle of the traditional valve-regulated sealed lead-acid battery is as follows: [0003] The electrochemical reaction principle of lead-acid batteries is to convert electrical energy into chemical energy for storage in the battery during charging, and convert chemical energy into electrical energy for external systems during discharge. Its charging and discharging process is completed by electrochemical reaction, and the electrochemical reaction formula is as follows: [0004] positive electrode [0005] [0006] side effects [0007] negative electrode [0008] [0009] side effects [0010] It can be seen from the above reaction formula that there is a water decomposition reaction during the charging proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/02H01M4/14H01M10/12H01M4/16
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 张华农胡金丰
Owner SHENZHEN CENT POWER TECH
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