The wave of electrification is accelerating the coverage of the shipping industry. Electric ships have the advantages of environmental protection, zero pollution, safety and low cost of use. As China's environmental protection policies become more stringent, and because of the continuous improvement of lithium battery technology, we expect that the electrification of ships will enter a period of rapid development in the next few years, and pure electric ships will become the mainstream direction of development.

 

Recently, the first lithium battery-powered cruise ship in Jiaxing Nanhu Scenic Area officially started construction in Jiaxing Weijia Ship Co., Ltd. The cruise ship uses lithium iron phosphate battery safety design, and the battery itself has no vibration source, the ship is basically no noise when sailing, only the sound of the propeller flapping splash.

 

After the cruise ship uses lithium batteries, its endurance is improved by more than 100% compared with the existing traditional lead-acid batteries. The positive and negative electrodes of traditional lead-acid batteries are composed of lead and its oxides, and the electrolyte is sulfuric acid. In the process of using and recycling lead-acid batteries, improper operation will cause damage to the water and soil ecology, compared with SLA, LFP batteries will not cause significant damage to the human body and the environment during ALL the product life cycle.

 

The application fields of electric ships and electric vehicles are very different, and the performance requirements of lithium batteries are not the same. From the current point of view, whether it is the first lithium battery-powered cruise ship in Jiaxing, or the electric ships deployed by Yiwei Lithium Energy, CATL, and Guoxuan Hi-Tech, without exception, lithium iron phosphate batteries are used first. This is obviously not a coincidence.

 

LFP battery has good safety, long-cycle performance, good high temperature stability and low cost. It is the best choice for ship power batteries at this stage. At present, the price of lithium iron phosphate batteries has dropped to CNY0.8/Wh, which is economical in the field of marine applications. In terms of safety, lithium iron phosphate power batteries and BMS battery management systems have developed rapidly in recent years. The increase in charging and discharging rates has enabled ships to start acceleration and power handling better. This shows that LFP batteries have the technical conditions for promotion and application on ships.

 

"LiFePO4 batteries have become the best choice for marine power batteries at this stage due to their high safety, long life, low cost, balanced performance and other advantages. CATL has overcome technical problems such as safety, long battery life, high power, and long life. , The battery pack system is designed with a battery pack that meets the IP67 protection level, which can effectively avoid the safety risks caused by water vapor, salt spray and dust, and meet the IP level requirements for the entire life cycle.” said Wu Kai, vice president of CATL.

 

In fact, not only electric ships, but the advantages of LiFePO4 in other fields are gradually emerging. Cost and safety will continue to be the first consideration for battery suppliers in a variety of battery application scenarios. It is foreseeable that the scope of influence of LiFePO4 will grow rapidly in the future.

 

According to the analysis of the international research organization Wood Mackenzie report, LiFePO4 system batteries accounted for 10% of the electrochemical storage market in 2015, and then their market share has risen rapidly. They predict that by 2030, the LiFePO4 market share will exceed 30%.