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Quadruple the power of lithium ion
secondary batteries with porous current
collectors
Let's improve the lithium ion secondary batteries together to realize the sustainable earth in the future.
Contact Us
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Description
Partners for the development of porous current collectors to create the next-generation lithium ion secondary batteries, and those for the reailzation of sustainable earth in the future.
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Products used
Next-generation lithium ion secondary batteries using porous current collectors
*This product is under development.Therefore, the product specifications are subject to change without advance notice.
MATCHING
POINT
- ・Companies holding porous polymer film technologies and their scalabilities
- ・Companies having metal coating technologies and their scalabilities
- ・Companies seeking high-power and high-energy density batteries
- ・Companies persuing the extremely fast charging of lithium ion secondary batteteris
Improvement of lithium ion secondary batteries will bring about a reduction of greenhouse gases by promoting the elecrifications instead of using fossil fuels, leading to a realization of the sustainable energy society. Murata Manufacturing has successfully developed a porous current collector that dramatically improves the performance of lithium ion secondary batteries through the joint research with Stanford University. Murata Manufacturing is now looking for partners who will create the sustainable energy society together by implementing porous current collectors into the next-generation lithium ion secondary batteries.1
Porous current collector
Introduction of Next-Generation Lithium-Ion Secondary Batteries Using New Technology "Porous Current Collectors"
03:19In conventional lithium ion secondary batteries, there has been an issue : when we use the thicker electrodes to increase the energy density, the resistance increases as the lithium ion transport discance gets longer, reducing the maximum current, decreasing the power of the battery.
The resistance is low when the electrodes are thin
The resistance increases when the electrode gets thicker
We have developed a porous current collector to solve this issue.
Porous structure
*Images provided:Stanford University
Lithium ion secondary batteries using traditional current collectors have a structure in Fig. A. Cathodes are located on the aluminum foils, while anodes on the copper foils on both sides. The lithium ions then travel between the two electrodes through separators (blue arrows). On the other hand, porous current collectors in Fig. B, consists of a porous polymer film as a matrix, coated with two types of metals on the surface, aluminum on one side and copper on the other without filling the pores.
Placing cathodes on the aluminum sides while anodes on the copper ones, lithium ions are allowed to move through the current collectors (red arrows). As a result, lithium ion transport distance is shortened by one half, reducing resistance, and allowing more current to flow than before.
Ion pathway through separator
Ion pathway through porous current collector
Next-generation lithium ion secondary batteries using porous current collectors
Feature01Quadrupling the power of lithium ion secondary batteries
Implemantation of porous current collectors into the lithium ion secondary batteries will allow twice the current to flow at muximum, resulting in the fourfold power generation, and reducing the charging time to one quarter compared to the conventional lithium ion secondary batteries with traditional current collectors.
Relationship between the capacity and charging/discharging speed comparing lithium ion batteries using traditional current collectors (TCCs) and porous current collectors (PCCs)2
Feature02Weight reduction of lithium ion secondary batteries
Aluminum and cooper foils are used as the traditional current collectors in Lithium ion secondary batteries. Suppose porous current collectors are used in a cylindrical cell (21700 size) instead of traditional current collectors, the weight would be reduced by about 10% due to the lighter weight of their polymer matrix. Since the amount of electrodes are equal in this estimation, the energy density is expected to increase by about 10%. Porous current collectors are the technology that can improve the power and fast-charging properties without compromising, or even increasing energy densities.
Feature03Safety improvement of lithium ion secondary batteries
It has been reported that lithium ion secondary batteries using metal-polymer composite current collectors showed the superior battery safeties, exhibiting the prevention of thermal runaway.3,4,5
These references suggest the possibility that porous current collectors would improve the battery safeties of lithium ion secondary batteries through the prevention of thermal runaways.
Perspectives
Porous current collector is compatible with existing battery manufacturing processes both for cylindrical and laminated types, indicating that next-generation lithium ion secondary batteries with porous current collectors would be applied to all devices in which the present lithium ion secondary batteries are currently used.
Moreover, as the enhancements with this technology become greater the larger the batteries, it would be possible to apply next-generation lithium ion secondary batteries into the fields where it has not been possible to apply them before.
Cylindrical Type lithium ion secondary batteries
Laminated Type lithium ion secondary batteries
Inquiries
We are looking for co-creation partners for the development of porous current collectors and their implementation into lithium ion secondary batteries that would achieve the fourfold power generation compared to that of the conventional lithium ion secondary batteries.
If your company is interested in collaborating with Murata Manufacturing, please feel free to contact us using the inquiries form.
*This product is under development.Therefore, the product specifications are subject to change without advance notice.
Message from the developers
Murata Manufacturing Co., Ltd.
Energy storage technology development department 1 Device Center, Corporate Technology & Business Development Unit
Yoshiaki Suzuki
Yasuyuki Masuda
Takahiro Yuuki
We at Murata Manufacturing are carrying on the history of lithium ion secondary batteries interited from Sony. Recently, we have developed a porous current collector together with Stanford University. Murata Manufacturing is now trying to change the history of energy through the development of lithium ion secondary batteries with porous current collectors, ensuring that this battery evolution spread throughout the world. We would like to accomplish this innovation together with you to create the future of the earth.
References
- (1) Yusheng Ye, Rong Xu, Wenxiao Huang, Huayue Ai, Wenbo Zhang, Jordan Otto Affeld, Andy Cui, Fang Liu, Xin Gao, Zhouyi Chen, Tony Li, Xin Xiao, Zewen Zhang, Yucan Peng, Rafael A. Vila, Yecun Wu, Solomon T. Oyakhire, Hideaki Kuwajima, Yoshiaki Suzuki, Ryuhei Matsumoto, Yasuyuki Masuda, Takahiro Yuuki, Yuri Nakayama & Yi Cui, “Quadruple the rate capability of high-energy batteries through a porous current collector design”, Nature Energy 9, 643–653 (2024).
- (2) Yusheng Ye, Rong Xu, Wenxiao Huang, Huayue Ai, Wenbo Zhang, Jordan Otto Affeld, Andy Cui, Fang Liu, Xin Gao, Zhouyi Chen, Tony Li, Xin Xiao, Zewen Zhang, Yucan Peng, Rafael A. Vila, Yecun Wu, Solomon T. Oyakhire, Hideaki Kuwajima, Yoshiaki Suzuki, Ryuhei Matsumoto, Yasuyuki Masuda, Takahiro Yuuki, Yuri Nakayama & Yi Cui, “Quadruple the rate capability of high-energy batteries through a porous current collector design”, Nature Energy 9, 643–653 (2024).
- (3) Martin T.M. Pham, John J. Darst, William Q. Walker, Thomas M.M. Heenan, Drasti Patel, Francesco Iacoviello, Alexander Rack, Margie P. Olbinado, Gareth Hinds, Dan J.L. Brett, Eric Darcy, Donal P. Finegan, Paul R. Shearing, “Prevention of lithium-ion battery thermal runaway using polymer-substrate current collectors”, Cell Reports Physical Science 2, 100360 (2021).
- (4) Zhikang Liu, Yanhao Dong, ORCID Xiaoqun Qi, Ru Wang, Zhenglu Zhu, Chao Yan, Xinpeng Jiao, Sipei Li, Long Qie, Ju Li and Yunhui Huang, “Stretchable separator/current collector composite for superior battery safety”, Energy & Environtal Science 15, 5313 (2022).
- (5) Yong Peng, Xuning Feng, Jianzhong Xia, Zesheng You, Fangshu Zhang, Yiwei Chen, Congze Fan, Jianfeng Hua, Yubo Lian, Zhongde Shan, Minggao Ouyang, “Polymer based multi-layer Al composite current collector improves battery safety”, Chemical Engineering Journal 491, 151474 (2024).
Inquiries
We are looking for co-creation partners for the development of porous current collectors and their implementation into lithium ion secondary batteries that would achieve the fourfold power generation compared to that of the conventional lithium ion secondary batteries.
If your company is interested in collaborating with Murata Manufacturing, please feel free to contact us using the inquiries form.
*This product is under development.Therefore, the product specifications are subject to change without advance notice.
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Mask voice clip is a voice input device clipped to masks for highly accurate real-time voice isolation even in noisy environments.
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Quadruple the power of lithium ion secondary batteries with porous current collectors
We are looking for co-creation partners for the development of porous current collectors and their implementation into lithium ion secondary batteries that would achieve the fourfold power generation compared to that of the conventional lithium ion secondary batteries.
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