Detection method of lithium ion battery for hybrid power ship

Abstract

The invention discloses a detection method of a lithium ion battery for a hybrid power ship. The detection method comprises the following steps of S1, acquiring the specific energy and the energy density of the lithium ion battery to be detected; S2, judging whether the specific energy and the energy density are larger than or equal to corresponding preset threshold values, and executing the S3 if the specific energy and the energy density are larger than or equal to the corresponding preset threshold values; S3, acquiring the electrical charge efficiency and the energy efficiency of the lithium ion battery to be detected; S4, judging whether the electrical charge efficiency and the energy efficiency are larger than or equal to corresponding preset threshold values, and executing the S5 if the electrical charge efficiency and the energy efficiency are larger than or equal to the corresponding preset threshold values; S5, acquiring the charging power and the discharging power of the lithium ion battery to be detected; S6, judging whether the charging power and the discharging power are larger than or equal to corresponding preset threshold values, determining that the lithium ion battery to be detected is qualified if the charging power and the discharging power are larger than or equal to the corresponding preset threshold values, and completing the test step. By means of the detection method, the using state and the working performance of the lithium ion battery are monitored at regular intervals, the aging and damaged battery can be replaced conveniently in time, and the lithium ion battery for the hybrid power ship is controlled within a safety range so that the hybrid power ship can work in a safe state all the time.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a detection method for lithium-ion batteries used in hybrid ships. Background technique [0002] As the global climate continues to deteriorate and fossil fuels are exhausted, human beings are constantly looking for new energy sources to replace traditional fossil fuels. Especially in the means of transportation, in the past ten years, various new types of electric mopeds that use electric energy as an alternative to traditional energy sources, as well as gasoline-electric hybrid / pure electric vehicles and other means of transportation have emerged. As a means of water transportation, ships are also actively seeking breakthroughs in their own power systems during this fuel crisis. Among them, oil-electric hybrid ships have attracted widespread attention for their energy-saving and clean features. [0003] Lithium-ion batteries have become the preferred energy stora...

AI Technical Summary

Problems solved by technology

The existing detection methods of lithium-ion batteries focus on parameters such as capacity and energy density. This measurement method has certain limitations and cannot fully reflect the performance parameters of lithium-ion batteries. This application uses lithium-ion batteries for hybrid ships. The safety of lithium-ion batteries is the starting point, comprehensively considering the specific energy, energy density, charging efficiency and energy efficiency of lithium-ion batteries, and strive to comprehensively consider the safety of lithium-ion batteries and the advantages and disadvantages of performance parameters, with a view to lithium-ion batteries Batteries can better provide stable and safe power supply for hybrid ships

Images