AllCell Automotive introduces self-cooling 48V Li-ion micro-hybrid battery
17 September 2013
AllCell Automotive has introduced a 48-volt micro-hybrid Li-ion battery that uses AllCell’s phase change material (PCM) technology (earlier post) to self-cool—thereby addressing a thermal management problem that can limit cycle life in typical micro-hybrid and start-stop batteries.
The average car spends up to 95% of its life parked, and on the hottest of summer days temperatures inside a parked car can reach 70° C, a temperature at which batteries rapidly deteriorate.
AllCell’s micro-hybrid battery utilizes a proprietary passive cooling material to absorb heat, continuously protecting cells from overheating for hours at a time, and is designed for easy integration across a variety of vehicle platforms. The new battery will makes its debut at The Battery Show this week in Novi, MI.
The key to AllCell’s micro-hybrid battery is its composite phase change material (PCM) which requires no power to operate and has no moving parts. AllCell’s PCM absorbs and evenly distributes heat whenever the battery is subjected to hot conditions, regardless of whether the car is turned on. The combination of absorbing heat and limiting the maximum temperature allows automakers to eliminate active cooling systems while significantly extending battery life. AllCell’s PCM is manufactured from inexpensive wax and graphite materials, which add little cost to the total battery.
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