Evaluation of temperature rise of lithium ion secondary battery used in implantable battery system of UP-VAD

Eiji Okamoto; Yusuke Inoue; Yuhta Akasaka; Sayaka Okada; Takeya Ebina; Tomoki Kasai; Satoshi Murata; Yusuke Abe; Tsuneo Chinzei; Itsuro Saito; Takashi Isoyama; Shuichi Mochizuki; Kou Imachi; Yoshinori Mitamura

Evaluation of temperature rise of lithium ion secondary battery used in implantable battery system of UP-VAD

Eiji Okamoto, Yusuke Inoue, Yuhta Akasaka, Sayaka Okada, Takeya Ebina, Tomoki Kasai, Satoshi Murata, Yusuke Abe, Tsuneo Chinzei, Itsuro Saito, Takashi Isoyama, Shuichi Mochizuki, Kou Imachi, Yoshinori Mitamura

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

We have developed an implantable battery system for driving an UP-VAD, and we have employed two kind of a lithium ion secondary battery: a lithium ion battery (1800mAh) and a lithium polymer battery (730mAh). The lithium ion secondary battery has high energy density, long life and no memory effect. However temperature rise of the lithium ion secondary battery is critical issue, so a heat characteristic is essential factor in a selection of the battery used in the implantable battery system. We measured energy factors of both the lithium ion battery and the lithium polymer battery used in the implantable battery system. Measurement results showed that entropy change ΔS of both battery are almost same, -1.6 to -61.1 J/(mol K)in the lithium ion battery and -9.6 to -67.5 J/(mol K) in the lithium polymer battery. Coefficient of heat transfer h and specific heat CLi in each battery were obtained as 11.7 W/m2 K and 1070 J/kg in the lithium ion battery and 8.0 W/m2 K and 1230 J/kg in the lithium polymer battery respectively . Internal resistance R was obtained as 0.1 ohm in the lithium ion battery and 0.03 ohm in the lithium polymer battery. From above results, heat characteristics of both battery are almost same, however internal resistance of the lithium ion battery is bigger than that of the lithium polymer battery. Thus temperature rise of the lithium ion battery is slightly higher than that of the lithium polymer battery under a same condition. In conclusion, the lithium polymer battery is more suitable for implantable battery system than the lithium ion battery.

Original language	English
Title of host publication	IFMBE Proceedings
Publisher	Springer Verlag
Pages	4142-4145
Number of pages	4
Volume	14
Edition	1
Publication status	Published - 2007
Externally published	Yes
Event	10th World Congress on Medical Physics and Biomedical Engineering, WC 2006 - Seoul, Korea, Republic of Duration: 2006 Aug 27 → 2006 Sep 1

Other

Other	10th World Congress on Medical Physics and Biomedical Engineering, WC 2006
Country	Korea, Republic of
City	Seoul
Period	06/8/27 → 06/9/1

Keywords

Artificial heart
Artificial organs
Battery
Lithium ion battery
VAD

ASJC Scopus subject areas

Biomedical Engineering
Bioengineering

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Evaluation of temperature rise of lithium ion secondary battery used in implantable battery system of UP-VAD. / Okamoto, Eiji; Inoue, Yusuke; Akasaka, Yuhta; Okada, Sayaka; Ebina, Takeya; Kasai, Tomoki; Murata, Satoshi; Abe, Yusuke; Chinzei, Tsuneo; Saito, Itsuro; Isoyama, Takashi; Mochizuki, Shuichi; Imachi, Kou; Mitamura, Yoshinori.

IFMBE Proceedings. Vol. 14 1. ed. Springer Verlag, 2007. p. 4142-4145.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Okamoto, E, Inoue, Y, Akasaka, Y, Okada, S, Ebina, T, Kasai, T, Murata, S, Abe, Y, Chinzei, T, Saito, I, Isoyama, T, Mochizuki, S, Imachi, K & Mitamura, Y 2007, Evaluation of temperature rise of lithium ion secondary battery used in implantable battery system of UP-VAD. in IFMBE Proceedings. 1 edn, vol. 14, Springer Verlag, pp. 4142-4145, 10th World Congress on Medical Physics and Biomedical Engineering, WC 2006, Seoul, Korea, Republic of, 06/8/27.

Okamoto, Eiji ; Inoue, Yusuke ; Akasaka, Yuhta ; Okada, Sayaka ; Ebina, Takeya ; Kasai, Tomoki ; Murata, Satoshi ; Abe, Yusuke ; Chinzei, Tsuneo ; Saito, Itsuro ; Isoyama, Takashi ; Mochizuki, Shuichi ; Imachi, Kou ; Mitamura, Yoshinori. / Evaluation of temperature rise of lithium ion secondary battery used in implantable battery system of UP-VAD. IFMBE Proceedings. Vol. 14 1. ed. Springer Verlag, 2007. pp. 4142-4145

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title = "Evaluation of temperature rise of lithium ion secondary battery used in implantable battery system of UP-VAD",

abstract = "We have developed an implantable battery system for driving an UP-VAD, and we have employed two kind of a lithium ion secondary battery: a lithium ion battery (1800mAh) and a lithium polymer battery (730mAh). The lithium ion secondary battery has high energy density, long life and no memory effect. However temperature rise of the lithium ion secondary battery is critical issue, so a heat characteristic is essential factor in a selection of the battery used in the implantable battery system. We measured energy factors of both the lithium ion battery and the lithium polymer battery used in the implantable battery system. Measurement results showed that entropy change ΔS of both battery are almost same, -1.6 to -61.1 J/(mol K)in the lithium ion battery and -9.6 to -67.5 J/(mol K) in the lithium polymer battery. Coefficient of heat transfer h and specific heat CLi in each battery were obtained as 11.7 W/m2 K and 1070 J/kg in the lithium ion battery and 8.0 W/m2 K and 1230 J/kg in the lithium polymer battery respectively . Internal resistance R was obtained as 0.1 ohm in the lithium ion battery and 0.03 ohm in the lithium polymer battery. From above results, heat characteristics of both battery are almost same, however internal resistance of the lithium ion battery is bigger than that of the lithium polymer battery. Thus temperature rise of the lithium ion battery is slightly higher than that of the lithium polymer battery under a same condition. In conclusion, the lithium polymer battery is more suitable for implantable battery system than the lithium ion battery.",

keywords = "Artificial heart, Artificial organs, Battery, Lithium ion battery, VAD",

author = "Eiji Okamoto and Yusuke Inoue and Yuhta Akasaka and Sayaka Okada and Takeya Ebina and Tomoki Kasai and Satoshi Murata and Yusuke Abe and Tsuneo Chinzei and Itsuro Saito and Takashi Isoyama and Shuichi Mochizuki and Kou Imachi and Yoshinori Mitamura",

year = "2007",

language = "English",

volume = "14",

pages = "4142--4145",

booktitle = "IFMBE Proceedings",

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T1 - Evaluation of temperature rise of lithium ion secondary battery used in implantable battery system of UP-VAD

AU - Okamoto, Eiji

AU - Inoue, Yusuke

AU - Akasaka, Yuhta

AU - Okada, Sayaka

AU - Ebina, Takeya

AU - Kasai, Tomoki

AU - Murata, Satoshi

AU - Abe, Yusuke

AU - Chinzei, Tsuneo

AU - Saito, Itsuro

AU - Isoyama, Takashi

AU - Mochizuki, Shuichi

AU - Imachi, Kou

AU - Mitamura, Yoshinori

PY - 2007

Y1 - 2007

N2 - We have developed an implantable battery system for driving an UP-VAD, and we have employed two kind of a lithium ion secondary battery: a lithium ion battery (1800mAh) and a lithium polymer battery (730mAh). The lithium ion secondary battery has high energy density, long life and no memory effect. However temperature rise of the lithium ion secondary battery is critical issue, so a heat characteristic is essential factor in a selection of the battery used in the implantable battery system. We measured energy factors of both the lithium ion battery and the lithium polymer battery used in the implantable battery system. Measurement results showed that entropy change ΔS of both battery are almost same, -1.6 to -61.1 J/(mol K)in the lithium ion battery and -9.6 to -67.5 J/(mol K) in the lithium polymer battery. Coefficient of heat transfer h and specific heat CLi in each battery were obtained as 11.7 W/m2 K and 1070 J/kg in the lithium ion battery and 8.0 W/m2 K and 1230 J/kg in the lithium polymer battery respectively . Internal resistance R was obtained as 0.1 ohm in the lithium ion battery and 0.03 ohm in the lithium polymer battery. From above results, heat characteristics of both battery are almost same, however internal resistance of the lithium ion battery is bigger than that of the lithium polymer battery. Thus temperature rise of the lithium ion battery is slightly higher than that of the lithium polymer battery under a same condition. In conclusion, the lithium polymer battery is more suitable for implantable battery system than the lithium ion battery.

AB - We have developed an implantable battery system for driving an UP-VAD, and we have employed two kind of a lithium ion secondary battery: a lithium ion battery (1800mAh) and a lithium polymer battery (730mAh). The lithium ion secondary battery has high energy density, long life and no memory effect. However temperature rise of the lithium ion secondary battery is critical issue, so a heat characteristic is essential factor in a selection of the battery used in the implantable battery system. We measured energy factors of both the lithium ion battery and the lithium polymer battery used in the implantable battery system. Measurement results showed that entropy change ΔS of both battery are almost same, -1.6 to -61.1 J/(mol K)in the lithium ion battery and -9.6 to -67.5 J/(mol K) in the lithium polymer battery. Coefficient of heat transfer h and specific heat CLi in each battery were obtained as 11.7 W/m2 K and 1070 J/kg in the lithium ion battery and 8.0 W/m2 K and 1230 J/kg in the lithium polymer battery respectively . Internal resistance R was obtained as 0.1 ohm in the lithium ion battery and 0.03 ohm in the lithium polymer battery. From above results, heat characteristics of both battery are almost same, however internal resistance of the lithium ion battery is bigger than that of the lithium polymer battery. Thus temperature rise of the lithium ion battery is slightly higher than that of the lithium polymer battery under a same condition. In conclusion, the lithium polymer battery is more suitable for implantable battery system than the lithium ion battery.

KW - Artificial heart

KW - Artificial organs

KW - Battery

KW - Lithium ion battery

KW - VAD

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AN - SCOPUS:84958280748

VL - 14

SP - 4142

EP - 4145

BT - IFMBE Proceedings

PB - Springer Verlag

T2 - 10th World Congress on Medical Physics and Biomedical Engineering, WC 2006

Y2 - 27 August 2006 through 1 September 2006

ER -