The entire module mainly consists of a monitoring system module, an automatic safety system module and a hydrogen storage bottle. The monitoring system module mainly monitors the hydrogen storage capacity, temperature, and pressure of each hydrogen cylinder, the opening and closing status of each gas circuit valve in the module, the hydrogen concentration in the module, and the information on the used time and expected usable time of the hydrogen storage module. The automatic safety system module is mainly arranged with a hydrogen concentration sensor (Hydrogen detector) and a tank shut-off valve (Tank shut-off valve) as shown in the figure below, which can ensure that after detecting any hydrogen leakage due to external factors such as vibration, feedback is quickly cut off.
In the hydrogen storage bottle section, Toyota has directly adopted the vehicle-mounted hydrogen storage bottle series products developed. The basic structure of the hydrogen storage bottle is as shown in the following figure. It can be seen that the hydrogen storage bottle is mainly composed of Boss, glass fiber reinforced plastic layer (GFRP), carbon fiber reinforced plastic layer (CFRP), resin layer, and protective parts.
The GFRP layer mainly protects the surface of the hydrogen storage bottle, the CFRP layer mainly plays a role in resisting compression, and the resin layer serves as the inner liner of the hydrogen storage bottle. The protective parts have a certain thickened design. Boss can ensure that the valve metal material is reliably combined with the inner liner resin material. Currently, Toyota hydrogen storage bottles are also a series of products. The specific parameters are as follows: Combined with the product parameters of the hydrogen storage module mentioned above, it can be seen that there are currently four main hydrogen storage bottles G2-3, G2-2, G2-1, and G2-L1. As part of the hydrogen storage bottle group of the hydrogen storage module, it is possible to integrate other hydrogen storage bottles into new hydrogen storage module products in the future according to customer needs.
On October, 2021, Toyota Mirai set a world record for the cruising range of a fuel cell vehicle. It was filled with 5.65kg of hydrogen at a time and traveled a total of 1360 kilometers. The hydrogen consumption per 100 kilometers was only 0.415kg. It can be simply calculated that if Toyota Mirai second-generation vehicle is combined with its TC36 hydrogen storage module product (hydrogen storage is about 36kg), the cruising range may reach about 8600 kilometers. It is really convenient to think that it is only convenient to add hydrogen fuel every time you run more than 8,000 kilometers.