This image depicts a lithium ion battery with an arrow pointing towards the positive terminal. The lithium ion battery is a type of rechargeable battery that uses lithium metal as one of its electrodes. It is commonly used in electronic devices, such as laptops and cell phones, to provide power. The lithium ion battery is typically made up of layers of lithium cobalt oxide and a lithium metals layer. The arrow is pointing towards the positive terminal, which indicates the direction of electric current during discharge. This image shows that the lithium ion battery is rechargeable, meaning it can be charged and discharged repeatedly. The lithium ion battery has a high energy density compared to other types of rechargeable batteries, such as nickel cadmium (Ni - Cad) and lead acid. Lithium ion batteries are also known for their high power-to-weight ratio and long shelf life, which makes them suitable for use in portable devices.

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