A bar graph that shows the battery energy density (Wh/L) of different types of batteries from 2008 to 2015. The x-axis represents the years, starting from 2008 and ending in 2015, with the y-axis representing the number of batteries. There are six bars in the graph, each representing a different type of battery. The first bar represents 2008, the second bar represents 2009, the third bar represents 2010, the fourth bar represents 2011, the fifth bar represents 2012, the sixth bar represents 2013, the seventh bar represents 2014, the eighth bar represents 2015, and the ninth bar represents 2016. The bars are arranged in a horizontal axis, with each bar representing a year. The graph shows that the battery cost (s/kWh) has increased from around 1,200 kWh in 2008 to around 350 kWh in 2015.

User patricen uploaded the image

Waste Management Municipal Solid Product Logo - Plot - Software PNG

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