Yes, you can just connect the copper parts on both sides (the middle two parts are called communication pins), but it is recommended to do so, because the universal charger is a unified standard and can Not suitable for all mobile phones, it is recommended to put it in your mobile phone to rinse it. It's good for the battery.
Extended answer:
How to use the universal charger:
First you need to remove the cell phone battery and clearly see the positive and negative poles marked on the cell phone battery. Because some universal chargers have positive and negative poles.
Open the clip of the universal charger, put the cell phone battery into the clip, and contact the metal interface of the cell phone battery with the metal part of the universal charger. Before contact, read the logo on it. the universal charger clearly. If heis no positive or negative mark, you can directly contact the battery interface with the charger metal part. If the metal part is not in the correct position, you can adjust the metal part on the charger. the appropriate position. After contact, if the charger light comes on, this means that the contact is good.
After establishing good contact between the charger and the battery, we plug the charger into the socket. When the light flashes, it means it is charging. Wait patiently until it is fully charged.
Hello, let me explain the simple structure of lithium batteries. If you don't understand anything, you can continue asking questions.
The basic principle of the battery is a charge and discharge process in which the anode and cathode are inserted into the electrolyte. From what you describe it should be a prismatic battery and the batterylithium polymer must be a sheet.
In order to ensure complete contact between the electrodes and the electrolyte, the surface area of the anode and cathode will be increased. The anode is aluminum foil and the cathode is copper foil, but their surfaces are covered with black film (electrode core process), then a separator is added in the middle of the cathode strips and d anode then rolled up. The product is called Jelly Roll. This thing is inserted into the aluminum box. The positive and negative electrodes are taken from the Jelly Roll. The negative electrode is connected to the middle of the battery core. the outer aluminum shell of the battery core. Then inject the electrolyte inside and laser seal it. Many steps were omitted.
So to answer the question you described, the silver substance you mentioned should be aluminum flakes with a black coating. Afterwards,there should be a solid piece of copper, also covered with a black membrane, and some white separating membranes. Made of coils. As for the composition of the coating, this is the main process and different manufacturers are different.