Battery lithium ion battery is the most commonly used nowadays in electronic goods as well as electric vehicles. Lithium ion battery consists of an anode (negative pole), cathode (positive pole), electrolyte and separator. Anode in lithium ion batteries use graphite material as the site of oxidation of lithium ion. The graphite material can be replaced with advanced carbon-based materials such as FRS or carbon nanotubes (CNT).
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Lithium ion battery cathode using LiCoO2 as place lithium ion reduction reaction. Then the electrolyte used is LiPF6 as lithium ion transfer media from the anode to the cathode or vice versa. Separator serves to separate the cathode and anode in order not to short circuit occurs that will interfere with the battery performance and battery life.
Figure 1. Mechanism of charge and discharge the battery lithium ion battery 
Battery lithium ion secondary battery which is rechargeable. Working principles on lithium ion batteries are lithium ion that will only move from the anode to the cathode side or vice versa. At the time of discharge, lithium ions and electrons will be generated at the anode are going towards the cathode to react in the reduction with CoO2 reshape LiCoO2. Whereas at the time of Charge, cathode and lithium ions will produce electrons which are going towards the anode to react with carbon to form C6Lix. The reaction that occurs in lithium ion batteries are as follows:
Figure 2. Battery charge and discharge reactions of lithium ions 
In November 2017, lithium ion Batteries used by The Guangzhou Shipyard International Company Ltd to manufacture the electric cargo ships capable of holding goods are more than 2000 tonnes. The ships can travel along the 80 km (50 MI) after battery lithium ion rechargeable for 2 hours. Electric cargo ship has a length of 70.5 meters, width of 13.9 metres, a depth of 4.5 meters and weighing a total of about 600 tons vessel . In addition to battery lithium ion electric cargo ship, using superkapasitor as a source of additional energy. Lithium ion battery capacity and superkapasitor of about 2400 kWh which is equivalent to the capacity of a battery electric car type 40 new BYD E6 "Pioneer" . Electric cargo ship speed is 12.8 km/h (8 mph). The number of lithium-ion batteries that are used as much as 1000 Pack so that the weight of batteries total plus superkapasitor about 26 tons. Huang Jailin, General Manager of Hangzhou Modern Ship Design & Research Co., said that after the cargo ship is driven by electricity then will no longer produce emissions that would pollute the environment. In the future, electric ship technologies can be used to carry passengers as a cruise ship or ferry vessels .
Launch of cargo ships world's first electricity 
Electric cargo ships will be on trial in the island of Longxue, Nansha. Ironically, the electric cargo ship will bring coal to supply the fuel needs of the power plant along the pearl river or River pearls. Coal is a fossil fuel that contributes to CO2 emissions. Then, the electricity generated from the plant can be used to recharge the lithium ion battery in cargo ships. This means the electrical cargo ship has not fully reduce CO2 gas emissions that cause global warming. The expectation, electric cargo ships will no longer carry coal so zero emission at transportation sector goods can be realized.
Figure 3. Cargo ships world's first electricity 
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