International Journal of Engineering and Techniques - Volume 3 Issue 1, Jan – Feb 2017 ISSN: 2395-1303 http://www.ijetjournal.org Page 111 Paper Battery: Journey to the Promising Energy Solution Miss. Arshin Zahir Deshmukh 1 , Prof.C.D.Mohod 2 1 Third Year student of Dept. of Mechanical Engineering,Guru gobind singh collage of engineering and research centre, nashik. 2 (HOD of mechanical dept.) Guru Gobind Singh Collage of Engineering and Research Centre,Nashik I. INTRODUCTION Batteries in the modern world have become ubiquitous in the senses that they provide energy in wide range. The 21 st century is mainly known as ‘Digital Century’. Due to digitalization, the portable electronics devices like mobile phones, computers, i-pads etc. are becoming popular because of their compact size and light weight property. After briefly studying I reached on conclusion that the heart of all these devices is ‘Battery’. Traditionally, battery design contain anode (-ve electrode), cathode (+ve electrode) which are separated by electrolyte are in the form of liquid solution. This separator prevents the anode and cathode from touching. LIBs has high energy density and high open circuit voltage. Despite superior performance, there are many problems associated with LIBs. Some of those are listed below: A. Portability and Size:- Due to separate anode, cathode and electrolytic solution the traditional batteries are not portable and compact. Therefore, we cannot use it in portable electronic devices and medical gadgets. B. Confined life time:- Battery life is depend upon the three key factors-time, temperature and number of charging/discharging cycles. All three parameters are inversely proportional to battery life. The following graph shows as the number of cycles increases temperature increases and it reduces the capacity of battery. Fig.1 Graph of cycle life of batteries C. Leakage:- If battery is deeply discharged the water in battery reacts to form hydrogen gas rather than completing the usual half reaction. The pressure is what burst the battery and leakage happen. The active chemical outflow will damage the instrumentation of batteries. D. E-Waste:- E-Waste is an electronic devices which are destined for reuse, resale, recycle and disposal. The traditional batteries also turns into category of e-Waste. Most of the batteries contains cadmium, lead, mercury, copper, zinc etc. Which are all hazardous to the environment and also to human health. These harmful substances permeate into the soil, groundwater and surface water through landfills. It release toxins into the air when they are burnt in municipal waste combustors. RESEARCH ARTICLE OPEN ACCESS Abstract: Batteries are the most complacent solution of energy storage. Presently, a new battery known as ‘paper battery’ is being prominent towards flexibility, ultra-thin energy storage and disposable in nature. This paper offers an intensive insight on this analogously revolutionizing and fascinate answer of energy storage through paper batteries associated provides an in depth analysis of same. Paper battery is combination of two distinct component such as high energy battery and supercapacitor which are separated in traditional electronics. This paper will give a brief review of how paper battery works. It aimed at understanding and analyzing the properties, advantages, disadvantages and several applications of paper batteries.In this paper I will lighten the recent development in fabrication of paper battery such as ‘Bacteria powered paper battery’ in which microorganism can harvest electrical power from any type of biodegradable source. This paper biobattery will be the future power source for papertronics. Keywords — Paper battery, carbon nanotubes, papertronics, PEM(Protein Exchange Membrane), E-Waste.