Скачать или смотреть I Opened a Lithium Battery and it Started SMOKING!

1. The Anode (Negative Electrode) ➖
The anode is typically made of graphite coated onto a copper foil. When the battery is charged, lithium ions are stored between the layers of graphite.
2. The Cathode (Positive Electrode) ➕
The cathode is usually a lithium metal oxide (like Lithium Cobalt Oxide) coated onto an aluminum foil. This is where the lithium ions "hang out" when the battery is discharged.
3. The Electrolyte 💧
This is a liquid or gel-like solvent containing lithium salts. Its job is to act as a medium that allows lithium ions to move back and forth between the anode and cathode. It is highly flammable and often smells like sweet nail polish remover. 🧪 
4. The Separator 🛑
This is the most critical safety component. It’s a very thin sheet of micro-perforated plastic (polyethylene or polypropylene). It allows ions to pass through but prevents the anode and cathode from touching.
🧨 Why Opening One is So Dangerous
If you were to physically cut into a battery, a few terrifying things happen almost instantly:
• Internal Short Circuit: As soon as a metal tool (like a knife or pliers) touches both the internal layers or pushes them together, it creates a "hard short." The energy stored in the battery is released all at once as heat. 🔥
• Thermal Runaway: The heat melts the separator, causing more shorts, which creates more heat. This loop is called "thermal runaway," and it can't be put out with water easily. 🌡️
• Toxic Outgassing: The electrolyte decomposes into nasty gases, including Hydrogen Fluoride, which is incredibly toxic if inhaled. 🤢
• Oxygen Generation: Some lithium chemistries release their own oxygen when they catch fire, meaning they can keep burning even if you try to smother them. 💨